Wood Anatomy of Anacardiaceae from India with Special Reference to Systematic Position of Rhus

IAWA Journal ◽  
2008 ◽  
Vol 29 (1) ◽  
pp. 79-106 ◽  
Author(s):  
Sangeeta Gupta ◽  
Manisha Agarwal

The present publication provides a comprehensive wood anatomical survey of woods of Indian tree species of the family Anacardiaceae. Thirtyfive species belonging to 19 genera are described as per the feature list of IAWA. Intrusive fibre cavities and perforated ray cells have been reported in Holigarna arnottiana and Pistacia terebinthus respectively. Two species, Choerospondias axillaris and Rhus hookeri, lacked helical thickening despite being ring-porous. Most tribes of the Anacardiaceae appear to be heterogeneous wood anatomically, except Semecarpeae which are homogeneous. The tribes Mangiferae and Semecarpeae are quite similar and may be placed together. Interesting findings were made regarding Indian species of Rhus, which can be divided into two groups. It is suggested to recognise Rhus Group II as a separate section. The ecological trends suggest that anatomical differentiation exists between tropical and temperate species as well as deciduous and evergreen species.

1997 ◽  
Vol 10 (6) ◽  
pp. 855 ◽  
Author(s):  
Mats H. G. Gustafsson ◽  
Kåre Bremer

The genus Carpodetus from New Zealand, New Guinea, and the Solomon Islands, traditionally has been included in the extremely heterogeneous Saxifragaceae sensu lato, but on account of morphological peculiarities it has sometimes been classified in its own family. On palynological grounds it has been suggested to belong near the Ericales. Parsimony analyses of matrices comprising rbcL sequences of 80 taxa sampled from the entire Asteridae and Rosidae provide support for a sister group relationship between Carpodetus and a clade comprising the closely related Australian genera Abrophyllum and Cuttsia, also formerly placed in Saxifragaceae sensu lato, but recently shown to belong within the order Asterales sensu lato. A morphological comparison between the three interrelated genera is provided. They have in common an indumentum of thick-walled unicellular hairs with warty cuticle, and are also uniform in wood anatomy as well as fruit and seed structure. It is proposed that the family Carpodetaceae be expanded to encompass Abrophyllum and Cuttsia.


Phytotaxa ◽  
2020 ◽  
Vol 428 (3) ◽  
pp. 209-227
Author(s):  
SUSANA ADRIANA MONTAÑO-ARIAS ◽  
ROSAURA GRETHER ◽  
SARA LUCÍA CAMARGO-RICALDE ◽  
MARÍA HILDA FLORES-OLVERA

The great diversity of the genus Mimosa and the difficulty in the circumscription of its species and varieties based on morphology have encouraged the search for characters in other sources of evidence such as wood anatomy, which provides characters of taxonomic importance. The main objective of this study was to identify characters with taxonomic value for Mimosa; we studied the wood anatomy of eight tree species in Mimosa sect. Batocaulon from Mexico: Mimosa acantholoba, M. bahamensis, M. benthamii, M. hexandra, M. leucaenoides, M. tejupilcana, M. tenuiflora, and M. texana belonging to eight series: Acantholobae, Bahamenses, Distachyae, Bimucronatae, Leucaenoideae, Plurijugae, Leiocarpae and Boreales, respectively. One stem fragment (80 cm in length) was collected at 80 cm above soil height, from three plants per species. Twenty-five measurements were taken per individual for 15 anatomical characters. Three species have ring-porous wood and five species have diffuse-porous wood; the species differ in colour, figure, in the prevalence of a certain type of axial parenchyma, in the tangential diameter of the earlywood vessels, in the number of vessels connected by confluent-aliform parenchyma, in the number of series of rays and in the presence or absence of crystal sand in the ray cells. These characters have taxonomic value at species level, but not at series level. At the section level, the presence of homocellular rays distinguished Batocaulon from other sections of the genus. Based on these results, we produced a wood anatomical identification key to the eight studied species.


1970 ◽  
Vol 48 (1) ◽  
pp. 1-24 ◽  
Author(s):  
Felicity E. A. Cutten ◽  
D. Keith McE. Kevan

The literature on the two described species of Nymphomyiidae, Nymphomyia alba Tokunaga and Palaeodipteron walkeri Ide, is reviewed. Previous opinions on the systematic position of the family and what is known or surmised about their biology are outlined. The occurrence of P. walkeri in Canada is discussed and new records are given from a small upland stream in western Quebec. The larvae of Nymphomyiidae were previously unknown, but those of P. walkeri have been discovered. It is confirmed that they are aquatic. Details of habitat of P. walkeri are given, and the larva is described and figured in detail. An outline of the probable bivoltine life history of this species and some further considerations regarding the relationships of the Nymphomyiidae are also made. An appendix makes additional comments on P. walkeri adults and the opportunity is taken by the second author to describe a new genus and species, Felicitomyia brundini, from the eastern Himalaya.


IAWA Journal ◽  
1993 ◽  
Vol 14 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Juliet Prior ◽  
Peter Gasson

Charcoal often retains sufficient qualitative anatomical features for the family and genus of the wood to be identified. During the charring process however, considerable and sometimes unexpected changes in quantitative characters occur, which are of particular importance to species identification and ecological wood anatomy. Comparative measurements were made using charred and uncharred trunkwood from six common southern African savanna trees. SampIes were charred for 30 minutes at either 400 or 700°C. Charcoal yield and significant quantitative changes in vessel diameter and ray cells are related both to wood anatomy and to the process of combustion. Differences observed on charring were most closely correlated with the nature and quantity of the fibres. Axial parenchyma cells expanded after charring at both temperatures.


Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1706
Author(s):  
Luis García Esteban ◽  
Paloma de Palacios ◽  
Alberto García-Iruela ◽  
Francisco García-Fernández ◽  
Lydia García-Esteban ◽  
...  

The wood anatomy of 132 species of the genera Abies, Cathaya, Cedrus, Keteleeria, Larix, Nothotsuga, Picea, Pinus, Pseudolarix, Pseudotsuga and Tsuga was studied to determine the elements that characterise the xylem of each genus and discuss possible groupings by wood anatomy for comparison with clades established by molecular phylogeny. The presence of resin canals and ray tracheids supports the family Pinaceae, although the absence of ray tracheids in Keteleeria and their occasional presence in Abies and Pseudolarix weakens it. Based on wood structure, Pinaceae clearly supports division into two groups, coinciding with molecular phylogeny: Pinoideae (Cathaya-Larix-Picea-Pinus-Pseudotsuga) and Abietoideae (Abies-Cedrus-Keteleeria-Nothotsuga-Pseudolarix-Tsuga). Although differences between genera are slight in Pinoideae, the Abietoideae group presents problems such as the presence of only axial resin canals in Keteleeria and Nothotsuga, absence of ray tracheids in Keteleeria and presence of traumatic radial resin canals in Cedrus. However, other features such as pitted horizontal walls and nodular end walls of ray parenchyma cells, indentures, scarce marginal axial parenchyma and presence of crystals in ray parenchyma strengthen the Abietoideae group.


1987 ◽  
Vol 98 (9-10) ◽  
pp. 537-542
Author(s):  
K. V. Krishnamurthy ◽  
K. Sigamani

Author(s):  
Mohamed Abd. S. El zayat ◽  
Mahmoud El Sayd Ali ◽  
Mohamed Hamdy Amar

Abstract Background The Capparaceae family is commonly recognized as a caper, while Cleomaceae represents one of small flowering family within the order Brassicales. Earlier, Cleomaceae was included in the family Capparaceae; then, it was moved to a distinct family after DNA evidence. Variation in habits and a bewildering array of floral and fruit forms contributed to making Capparaceae a “trash-basket” family in which many unrelated plants were placed. Indeed, family Capparaceae and Cleomaceae are in clear need of more detailed systematic revision. Results Here, in the present study, the morphological characteristics and the ecological distribution as well as the genetic diversity analysis among the twelve species of both Capparaceae and Cleomaceae have been determined. The genetic analysis has been checked using 15 ISSR, 30 SRAP, and 18 ISTR to assess the systematic knots between the two families. In order to detect the molecular phylogeny, a comparative analysis of the three markers was performed based on the exposure of discriminating capacity, efficiency, and phylogenetic heatmap. Our results indicated that there is a morphological and ecological variation between the two families. Moreover, the molecular analysis confirmed that ISTR followed by SRAP markers has superior discriminating capacity for describing the genetic diversity and is able to simultaneously distinguish many polymorphic markers per reaction. Indeed, both the PCA and HCA data have drawn a successful annotation relationship in Capparaceae and Cleome species to evaluate whether the specific group sort individual or overlap groups. Conclusion The outcomes of the morphological and ecological characterization along with the genetic diversity indicated an insight solution thorny interspecies in Cleome and Gynandropsis genera as a distinct family (Cleomaceae) and the other genera (Capparis, Cadaba, Boscia, and Maerua) as Capparaceae. Finally, we recommended further studies to elucidate the systematic position of Dipterygium glaucum.


2021 ◽  
pp. 1-15
Author(s):  
Juan López-Gappa ◽  
Leandro M. Pérez ◽  
Ana C.S. Almeida ◽  
Débora Iturra ◽  
Dennis P. Gordon ◽  
...  

Abstract Bryozoans with calcified frontal shields formed by the fusion of costae, collectively constituting a spinocyst, are traditionally assigned to the family Cribrilinidae. Today, this family is regarded as nonmonophyletic. In the Argentine Cenozoic, cribrilinids were until recently represented by only two fossil species from the Paleocene of Patagonia. This study describes the first fossil representatives of Jolietina and Parafigularia: J. victoria n. sp. and P. pigafettai n. sp., respectively. A fossil species of Figularia, F. elcanoi n. sp., is also described. The material comes from the early Miocene of the Monte León and Chenque formations (Patagonia, Argentina). For comparison, we also provide redescriptions of the remaining extant species of Jolietina: J. latimarginata (Busk, 1884) and J. pulchra Canu and Bassler, 1928a. The systematic position of some species previously assigned to Figularia is here discussed. Costafigularia n. gen. is erected, with Figularia pulcherrima Tilbrook, Hayward, and Gordon, 2001 as type species. Two species previously assigned to Figularia are here transferred to Costafigularia, resulting in C. jucunda n. comb. and C. tahitiensis n. comb. One species of Figularia is reassigned to Vitrimurella, resulting in V. ampla n. comb. The family Vitrimurellidae is here reassigned to the superfamily Cribrilinoidea. The subgenus Juxtacribrilina is elevated to genus rank. Inferusia is regarded as a subjective synonym of Parafigularia. Parafigularia darwini Moyano, 2011 is synonymized with I. taylori Kuklinski and Barnes, 2009, resulting in Parafigularia taylori n. comb. Morphological data suggest that these genera comprise different lineages, and a discussion on the disparities among cribrilinid (sensu lato) spinocysts is provided. UUID: http://zoobank.org/215957d3-064b-47e2-9090-d0309f6c9cd8


Trees ◽  
2021 ◽  
Author(s):  
Daiane Barbosa da Silva ◽  
Thaís Jorge de Vasconcellos ◽  
Cátia Henriques Callado

2021 ◽  
Author(s):  
Roberto Luis Salomón ◽  
Linus De Roo ◽  
Samuel Bodé ◽  
Pascal Boeckx ◽  
Kathy Steppe

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