A taxonomic revision of Brachychiton (Sterculiaceae)

1988 ◽  
Vol 1 (3) ◽  
pp. 199 ◽  
Author(s):  
GP Guymer
Keyword(s):  
Chromosome Numbers ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Sympatric Species ◽  
Herbarium Specimens ◽  
New Combinations ◽  
Separate Genus ◽  
Naturally Occurring ◽  
First Time ◽  
Seed Coats

Brachychiton Schott & Endl. has previously been included under Sterculia and its generic status has been uncertain. Characters of the follicles, seed coats and embryo strongly support the retention of Brachychiton as a separate genus. The genus comprises five sections, including one new section, Oxystele Guymer. Characters useful in identification and classification are reassessed and those found to be of most significance are described in detail and illustrated. Chromosome numbers of 2n = 40 for 12 species are recorded for the first time. Keys for the identification of taxa are given. Detailed new descriptions, distribution (including a map based on herbarium specimens), ecology, conservation status and relationship are provided for each taxon, and most taxa are illustrated. Taxa described as new are: B. acuminatus, B. albidus, B. chillagoensis, B. collinus, B. compactus, B. diversifolius subsp. orientalis, B. fitzgeraldianus, B. grandiflorus, B. megaphyllus, B. muellerianus, B. multicaulis, B. obtusilobus, B. populneus subsp. trilobus, B. spectabilis, B. tridentatus and B. xanthophyllus. The following five new combinations are made: B. garrawayae (Bailey) Guymer, B. tuberculatus (W. Fitzg.) Guymer, B. viridiflorus (W. Fitzg.) Guymer, B. viscidulus (W. Fitzg.) Guymer and B. vitifolius (Bailey) Guymer. Naturally occurring hybrids within the genus are frequent between partially sympatric species. Eight hybrids are recorded and described: B. x allochrous, B. x carneus, B. x excellens, B. x hirtellus, B. x incarnatus, B. x roseus, B. x turgidulus and B. x vinicolor.

scholarly journals A taxonomic revision of the African genus Desplatsia Bocq. (Malvaceae – Grewioideae)

2019 ◽  
Author(s):  
Julia Wellsow ◽  
Michelle Hart ◽  
Peter Wilkie ◽  
David J. Harris
Keyword(s):  
Conservation Status ◽  
Central Africa ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Distribution Maps ◽  
West And Central Africa ◽  
Species Descriptions ◽  
First Time ◽  
Trees And Shrubs ◽  
African Genus

A taxonomic revision of Desplatsia Bocq. (Malvaceae s. lat. Juss., subfamily Grewioideae Hochr., tribe Grewieae Endl.) based on about 800 herbarium specimens is presented. Desplatsia is a genus of trees and shrubs found in tropical West and Central Africa and is characterized by subulately divided stipules, the absence of an androgynophore, stamens that are fused to a tube at the base, and large and distinctive fruits that are dispersed by elephants. Four species are recognized (D. subericarpa Bocq., D. chrysochlamys (Mildbr. & Burret) Mildbr. & Burret, D. dewevrei (De Wild. & T.Durand) Burret and D. mildbraedii Burret) and 12 species names are placed into synonymy, two of which have been put into synonymy for the first time: D. floribunda Burret syn. nov. and D. trillesiana (Pierre ex De Wild.) Pierre ex A.Chev. syn. nov. All four species are widely distributed and their conservation status is assessed as Least Concern (LC). A key to the species, full species descriptions, illustrations, a specimen citation list and distribution maps are provided.

Taxonomic Revision of Euphrasia (Orobanchaceae) in South America

2021 ◽  
Vol 106 ◽  
pp. 392-423
Author(s):  
Ana Verónica Ortiz ◽  
Pablo Moroni ◽  
Fabiana Mirra ◽  
Rosa María Villanueva Espinoza ◽  
Nataly O'Leary
Keyword(s):  
South America ◽  
Native Species ◽  
Morphological Study ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
South American ◽  
South American Species ◽  
Arduous Task ◽  
First Time

Morphological boundaries between South American species of Euphrasia L. are controversial, rendering determination of specimens an arduous task. In this context, a comprehensive taxonomic revision of Euphrasia in South America is here provided for the first time. This study, based upon a classical morphological study of ca. 400 herbarium specimens, supports the recognition of eight species and one subspecies distributed in the Andean regions of Argentina, Bolivia, and Chile. From among native species, six belong to section Trifidae Benth. and one to the monotypic section Paradoxae Pugsley, endemic to Juan Fernández Islands; one adventive species, E. officinalis L., belongs to the section Euphrasia. The previously misunderstood presence of E. cockayniana Petrie is here untangled, and, consequently, the species is excluded from South America. A key to all Euphrasia taxa in South America, plus morphological descriptions, nomenclature items, geographical distribution and maps, habitat notes, illustrations, photographs, and discussion notes are included for the nine taxa. Eleven names are here synonymized, and lectotypes are designated for E. andicola Benth., E. debilis Wettst., E. flavicans Phil., E. intricata Phil., and E. philippii Wettst. Euphrasia andicola is reported for the first time for Argentina. This collaborative effort will represent a baseline for further investigations on Euphrasia in South America.

Distinguishing ten sympatric species of fiddler crab (Decapoda: Ocypodidae) using a suite of phenotypic characteristics

Zootaxa ◽  
2021 ◽  
Vol 5026 (4) ◽  
pp. 480-506
Author(s):  
LAURA A. MICHIE ◽  
R. S. K. BARNES ◽  
PAUL F. CLARK ◽  
WAYNE A. BENNETT ◽  
SIMON M. CRAGG
Keyword(s):  
Fiddler Crab ◽  
Taxonomic Revision ◽  
Field Studies ◽  
Sympatric Species ◽  
Phenotypic Characteristics ◽  
Biogeographic Region ◽  
Males And Females ◽  
First Time ◽  
The Village ◽  
Major Cheliped

Ten species of fiddler crab are reported inhabiting the intertidal zone of a shore on Kaledupa Island, Indonesia. This is one of the highest recorded numbers of fiddler crab species living in sympatry, equating to over two-thirds of those known from the Wallacea biogeographic region and more than half of all those recorded from Indonesia. The descriptions to identify and distinguish these ten species are provided using a suite of characters e.g., carapace, major cheliped, male gonopods, gastric mills, life colouration in males and females, and notes on their ecology and distribution. Specimens were observed and collected in the Wakatobi National Park, near the village of Ambeua on Kaledupa island, Sulawesi Tenggara, Indonesia. Gastric mills are described for the first time for Gelasimus jocelynae, Paraleptuca crassipes, Tubuca coarctata, T. demani and T. dussumieri. A tabulation of anatomical features and colouration for all species in this study is provided as a support for field studies. It identifies features that support the recently proposed taxonomic revision of fiddler crabs by Shih et al. (2016).  

A contribution to the taxonomy of the genus Rhaponticoides (Asteraceae, Cardueae)

Phytotaxa ◽  
2019 ◽  
Vol 422 (1) ◽  
pp. 9-32 ◽  
Author(s):  
KAZEM NEGARESH
Keyword(s):  
Chromosome Numbers ◽  
Full Description ◽  
New Combinations ◽  
First Time

A taxonomic synopsis of the genus Rhaponticoides is presented. Rhaponticoides kultiassovii, R. lasiopoda, R. phyllopoda, R. androssovii, R. gontscharovii, R. alaica, R. modesti, R. ruthenica var. bipinnatifida, R. sect. Vicentinae, R. sect. Africanae, R. sect. Turkestanicae and R. sect. Aralocaspicae are proposed as new combinations. Full description for R. sect. Vicentinae, R. sect. Africanae, R. sect. Turkestanicae and R. sect. Aralocaspicae and a key for all sections are presented for the first time here. My previous descriptions of R. sect. Iranicae and R. sect. Ruthenicae are revised. Two names, R. kultiassovii and R. lasiopoda, are typified. In addition, type details, full descriptions, morphological comparisons, distribution and habitat of transferred taxa are given. Finally, a new list of species of the genus Rhaponticoides with their heterotypic synonyms, geographical distributions and chromosome numbers is provided.

Can morphology and chromosome number contribute to species delimitation? A case in the Hibiscus trionum complex (Tribe Hibisceae, Malvaceae)

Phytotaxa ◽  
2019 ◽  
Vol 416 (4) ◽  
pp. 278-286
Author(s):  
MOHAMED OWIS BADRY ◽  
JENNIFER A. TATE ◽  
PRASHANT JOSHI ◽  
AHMED MAHMOUD ABBAS ◽  
SOHAIR THABET HAMED ◽  
...  
Keyword(s):  
Chromosome Number ◽  
Species Delimitation ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Chromosome Counts ◽  
Comprehensive Description ◽  
Hibiscus Trionum ◽  
The World ◽  
First Time

A taxonomic revision of Hibiscus trionum from Egypt was undertaken using morphological and cytological studies of field collections and herbarium specimens. The data indicate that all specimens so far collected in Egypt belong to H. tridactylites, rather than H. trionum. This paper includes a comprehensive description of H. tridactylites, its occurrence, a comparison with other species in the H. trionum complex, and comments on habitat, along with images for easy identification. In addition, chromosome counts for this species from Egypt have been determined for the first time, which add to existing information on chromosome counts for the species from different regions of the world.

A taxonomic revision ofAllium(Alliaceae) in the Canadian prairie provinces

Botany ◽  
2010 ◽  
Vol 88 (9) ◽  
pp. 787-809 ◽  
Author(s):  
Hyeok Jae Choi ◽  
J. Hugo Cota-Sánchez
Keyword(s):  
Native Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Ecological Data ◽  
Canadian Prairie ◽  
Distribution Maps ◽  
Allium Schoenoprasum ◽  
Allium Tricoccum ◽  
Prairie Provinces

The taxonomy, rarity, and conservation status of Allium  L. is revised for the Canadian prairie provinces, based on analyses of herbarium specimens and fieldwork. Five species are recognized: Allium schoenoprasum  L., A. geyeri S. Watson var. tenerum M.E. Jones, A. textile A. Nelson & J.F. Macbride, A. cernuum Roth, and A. stellatum Ker Gawler. Distribution maps and a key to species are provided, as well as complete descriptions of the species examined, including new illustrations, information on nomenclatural types, synonymies, and chromosomal and ecological data. A lectotype is designated for A. geyeri var. tenerum. In this study, A. geyeri var. geyeri reported from Alberta and Saskatchewan and ranked in these provinces as having rarity levels S2 and S1, respectively, by the Nature Conservancy, is excluded from the Canadian flora and the rare list of these provinces because it was misidentified from a herbarium specimen of A. textile. Allium tricoccum Solander in W. Aiton is regarded as a non-native species to Manitoba. The rarity and conservation status of Allium in the Canadian prairie provinces is as follows: (i) A. schoenoprasum, listed as S2 in Saskatchewan, is rare in Manitoba, although its rarity status has not been formally assessed in the province; (ii) A. geyeri var. tenerum is the rarest Allium taxon, with distribution restricted to the Waterton Lakes National Park areas of Alberta, and is currently listed as S2; and (iii) A. cernuum was re-evaluated and a rarity level of S1S2 was recommended for the species in Saskatchewan, particularly in its southwestern distributional habitat.

Taxonomic revision of Sabicea subgenus Anisophyllae (Ixoroideae, Rubiaceae) from Tropical Africa, with four new species

Phytotaxa ◽  
2017 ◽  
Vol 293 (1) ◽  
pp. 1 ◽  
Author(s):  
LISE A. ZEMAGHO ◽  
SIGRID LIEDE-SCHUMANN ◽  
OLIVIER LACHENAUD ◽  
STEVEN DESSEIN ◽  
BONAVENTURE SONKE
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Taxonomic Revision ◽  
Herbarium Specimens ◽  
Field Observations ◽  
Tropical Africa ◽  
Center Of Diversity ◽  
Infraspecific Taxa ◽  
Group A ◽  
Species Descriptions

A taxonomic revision of Sabicea subgenus Anisophyllae (Rubiaceae), a group restricted to Central and East Africa, is presented here. This work, based on a study of herbarium specimens and field observations in Cameroon and Gabon, includes a survey of the morphological features of the group, a key to the species, descriptions of all the taxa, and IUCN conservation status assessments. Fifteen species are recognised, four of which are described as new (Sabicea mapiana, S. ndjoleensis, S. parmentierae, S. sciaphilantha), three former varieties are raised to species rank (S. crystallina, S. jacfelicis, S. tersifolia), and one species previously sunk into synonymy is restored (S. bequaertii). Two new infraspecific taxa are also described, Sabicea crystallina subsp. engongensis and S. sciaphilantha subsp. hirsuta. The group has its center of diversity in Gabon, where 10 of the 15 species occur, three of them being endemic to the country.

Revisión taxonómica del complejo de Centaurea cyanus L. (Centaurea sect. Cyanus, Asteraceae) en la Península Ibérica. Taxonomic revision of the Centaurea cyanus L. complex (Centaurea sect. Cyanus, Asteraceae) in the Iberian Peninsula

2010 ◽  
Vol 35 ◽  
pp. 23-55 ◽  
Author(s):  
Adolfo Francisco Muñoz ◽  
Juan Antonio Devesa
Keyword(s):  
Iberian Peninsula ◽  
Geographical Distribution ◽  
Chromosome Numbers ◽  
Taxonomic Revision ◽  
Morphological Description ◽  
New Combinations ◽  
Taxonomic Review ◽  
Centaurea Cyanus ◽  
Distribución Geográfica ◽  
Península Ibérica

Español.  Se ha efectuado la revisión taxonómica de Centaurea sect. Cyanus en la Península Ibérica. Se reconocen seis táxones y se hacen dos nuevas combinaciones: C. triumfettii var. semidecurrens (Jord.) Muñoz Rodr. & Devesa y C. graminifolia (Lam.) Muñoz Rodr. & Devesa. Se aporta una clave para la identificación de los táxones, así como su descripción morfológica e información sobre la distribución geográfica, apetencias ecológicas, fenología y número cromosómico. English. A taxonomic review of Centaurea sect. Cyanus in the Iberian Peninsula was done. Six taxa are recognized and two new combinations are proposed: C. triumfetti var. semidecurrens (Jord.) Muñoz Rodr. & Devesa and C. graminifolia (Lam.) Muñoz Rodr. & Devesa. A key for the identification of taxa are provided, also their morphological description, information on geographical distribution, their ecology, their phenology and their chromosome numbers are given.

scholarly journals Taxonomic revision of Saudi Arabian Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) with one new variety and four new combinations

2018 ◽  
Vol 25 (1) ◽  
pp. 19-43 ◽  
Author(s):  
Dhafer Ahmed Alzahrani ◽  
Enas Jameel Albokhari
Keyword(s):  
Conservation Status ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Fruit Shape ◽  
New Combinations ◽  
New Variety ◽  
Distribution Maps ◽  
Flower Traits ◽  
Saline Habitats ◽  
Plant Taxon

The genera Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) present different morphological characters, viz. growth habit, leaf features, flower traits and fruit shape, and have a high diversity of species in Africa, Australia and Asia. Six species of Tetraena [T. alba (L.f.) Beier & Thulin, T. coccinea (L) Beier & Thulin, T. decumbens (Delile) Beier & Thulin, T. hamiensis (Schwein f.) Beier & Thulin, T. propinqua (Decne.) Ghaz. & Osborne and T. simplex (L.) Beier & Thulin], and one species of Zygophyllum (Z. fabago L.) have been identified in Saudi Arabia, most of which grow in sandy soils and saline habitats as shrubs and herbs. One new endemic variety (T. alba var. arabica Alzahrani & Albokhari) along with four new combinations [T. alba var. amblyocarpa (Baker) Alzahrani & Albokhari, T. hamiensis var. qatarensis (Hadidi ex Beier & Thulin) Alzahrani & Albokhari, T. hamiensis var. mandavillei (Hadidi ex Beier & Thulin) Alzahrnai & Albokhari, and T. propinqua subsp. migahidii (Hadidi ex Beier & Thulin) Alzahrani & Albokhari] are proposed. Descriptions, illustrations, distribution maps and a key for identification of the taxa are presented. Conservation status has been proposed for the new variety and combinations.Bangladesh J. Plant Taxon. 25(1): 19-43, 2018 (June)

scholarly journals Revision of the African species of Monanthotaxis (Annonaceae)

2021 ◽  
Author(s):  
P.H. Hoekstra ◽  
J.J. Wieringa ◽  
P.J.M. Maas ◽  
L.W. Chatrou
Keyword(s):  
Conservation Status ◽  
Taxonomic Revision ◽  
Floral Biology ◽  
New Combinations ◽  
Rain Forests ◽  
Tropical Africa ◽  
African Species ◽  
Distribution Maps ◽  
Vernacular Names ◽  
History Of

This taxonomic revision of the continental African species of Monanthotaxis (Annonaceae) includes 79 species and one variety. Thirteen new species (M. aestuaria, M. bidaultii, M. confusa, M. glabra, M. hexamera, M. mcphersonii, M. quasilanceolata, M. sterilis, M. submontana, M. suffruticosa, M. ursus, M. vulcanica and M. wieringae) are described and 5 new combinations (M. biglandulosa, M. kenyensis, M. ochroleuca, M. pynaertii and M. seretii) are made. The genus Monanthotaxis consists of lianas or lianescent shrubs. It occurs throughout forests in tropical Africa and the highest species diversity is found in the Western Central African rain forests. A key for flowering material is provided, just like a synoptic key including 45 characters. Topics included in the revision are the history of the taxonomy of Monanthotaxis, morphology, leaf anatomy, floral biology, distribution and habitat, phylogeny and finally ethnobotany and phytochemistry. Each species is fully described including synonymy, notes on distribution, habitat & ecology, vernacular names, uses and a preliminary IUCN conservation status. Distribution maps are provided for all species, illustrations for 48 species and photographs of 22 species. An index of exsiccatae and an index of the scientific names are included at the end.

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