Dicoma paivae and Dicoma cincerea (Asteraceae), two new species from Somalia

1994 ◽  
Vol 72 (10) ◽  
pp. 1478-1481 ◽  
Author(s):  
Santiago Ortiz ◽  
Juan Rodriguez-Oubiña

Two new species from northeastern Somalia, Dicoma paivae and Dicoma cinerea (Asteraceae), both of section Psilocoma Harv., are described. Dicoma paivae is most similar to Dicoma cana Balf. f. of Socotra Island, from which it can be distinguished by its wider, twisted branches, larger, aristate, conduplicate leaves, smaller capitula, and straw-coloured, coriaceus inner phyllaries. Dicoma cinerea is very closely related to Dicoma schimperi (DC.) O. Hoffm. of northeast tropical Africa and the Arabian Peninsula, from which it can be distinguished by the dense whitish tomentum covering the whole plant and by its broadly ovate to almost orbicular leaves with margins bearing bulbous teeth. Key words: Asteraceae, Dicoma, new species, tropical Africa, Somalia.

1995 ◽  
Vol 73 (1) ◽  
pp. 26-32 ◽  
Author(s):  
Tadeusz Kowalski ◽  
Rolf D. Kehr

Two new species of Phialocephala were isolated from the periderm of living branches of forest trees in Germany. In culture, Phialocephala compacta Kowalski & Kehr sp.nov., found on Alnus, is characterized by crowded conidiogenous heads that become deeply pigmented with age. Phialocephala scopiformis Kowalski & Kehr sp.nov., isolated from Picea and other conifers, develops elongated, complex conidiogenous heads with up to 15 series of branches in culture. The taxonomic placement of both new species and their role in endophytism and in natural pruning of branches is discussed. Key words: Picea abies, Alnus glutinosa, Phialocephala compacta, Phialocephala scopiformis, branch pruning fungi.


Author(s):  
Oudompone Insisiengmay ◽  
Mark Fleming Newman ◽  
Thomas Haevermans

Two new species of Kaempferia L. (Zingiberaceae), Kaempferia nemoralis Insis. sp. nov. and Kaempferia pascuorum Insis. sp. nov., from Cambodia and Lao PDR are described and illustrated. Morphological similarities to their closely related taxa are discussed. Kaempferia nemoralis Insis. sp. nov. is compared with Kaempferia larsenii Sirirugsa in its vegetative parts, but distinguished by the following characters: whole plant taller, leaf sheath and young shoot apex green, petiole absent. It differs from Kaempferia rotunda L. in its floral parts by the following characters: presence of peduncle, floral tube longer, labellum purple with white line at centre, anther crest obovate, bifid, apex irregularly rounded and ovary glabrous. Kaempferia pascuorum Insis. sp. nov. is compared with Kaempferia larsenii Sirirugsa. Proposed IUCN conservation assessments are also given: Kaempferia nemoralis Insis. sp. nov. occurs in disturbed, open forest and is assessed as CR, whereas Kaempferia pascuorum Insis. sp. nov. occurs in short grassland and is assessed as EN.


Zootaxa ◽  
2019 ◽  
Vol 4648 (3) ◽  
pp. 581-591 ◽  
Author(s):  
MARK G. VOLKOVITSH

Acmaeodera (Acmaeodera) strumiai sp. nov. from Oman, Saudi Arabia, Yemen and Mauritania, and A. (Acmaeotethya) dhofarica sp. nov. from Oman and Yemen are described, illustrated and compared with related species. 


2001 ◽  
Vol 33 (2) ◽  
pp. 111-116 ◽  
Author(s):  
Robert Lücking ◽  
Rolf Santesson

AbstractTwo new species belonging to the lichen families Pilocarpaceae and Ectolechiaceae are described from tropical Africa: Calopadia lucida sp. nov. (Ectolechiaceae) from Tanzania, being similar to C. puiggarii but differing in the UV fluorescent thallus and the pruinose apothecia, and Fellhanera ivoriensis sp. nov. (Pilocarpaceae) from the Ivory Coast, differing from the related F.rhapidophylli by the sorediate thallus and from other sorediate taxa by the combination of pale soralia, dark brown apothecia, and the ellipsoid-bacillar conidia. A key to the nine sorediate species of Fellhanera is provided.


1997 ◽  
Vol 75 (10) ◽  
pp. 1772-1777 ◽  
Author(s):  
Hermann Voglmayr

Two new species of aero-aquatic fungi, Helicodendron praetermissum sp.nov. and Spirosphaera carici-graminis sp.nov. are described and illustrated. They are compared with similar species. Because they were found exclusively on monocotyledonous plant remains submerged in small pools and ditches, their ecology and distribution is discussed. Key words: mitosporic fungi, hyphomycetes, aero-aquatic fungi, Helicodendron praetermissum, Spirosphaera carici-graminis.


2013 ◽  
Vol 70 (2) ◽  
pp. 367-379 ◽  
Author(s):  
R. R. Mill

Two new species of Convolvulus (Convolvulaceae), C. excelsus R.R.Mill and C. infantispinosus R.R.Mill, are described from Saudi Arabia. Convolvulus excelsus, an exceptionally tall species, has affinities with C. erinaceus Ledeb. but is phytogeographically disjunct from that and other allied species. Two new subspecies are also described: Convolvulus hystrix Vahl subsp. dhofarica R.R.Mill, from Oman, and C. oxyphyllus Boiss. subsp. sheilae R.R.Mill, from Saudi Arabia. Each novelty is given a provisional IUCN conservation assessment.


Bothalia ◽  
1981 ◽  
Vol 13 (3/4) ◽  
pp. 365-388 ◽  
Author(s):  
H. P. Linder

The genus  Herschelia (Disinae, Orchidaceae) is revised. Sixteen species, one subspecies and one variety are recognized. Two new species from tropical Africa (H. chimanimaniensis Linder and H. praecox Linder) and a new variety from the Cape Province H. lugens (H. Bol.) Kraenzl. var. nigrescens Linder are described. Three new combinations are made by transferring the two species of Forficaria and  Disa sect. Microperistera (one species) to Herschelia. Thirteen species are illustrated, and the nomenclature and the available information about the habitats of the taxa are discussed. The species are grouped into two subgenera, one of which is further divided into two sections and four series. This classification is based on the putative phylogeny, as determined by the method devised by Wagner (1962).


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