TAXONOMIC SYNOPSIS OF BROMUS SECTION BROMOPSIS (GRAMINEAE) IN ALASKA

1967 ◽  
Vol 45 (8) ◽  
pp. 1309-1313 ◽  
Author(s):  
Wm. W. Mitchell

The taxonomy of the genus Bromus section Bromopsis in Alaska is summarized. With recent changes incorporated in the treatment the section now includes B. ciliatus (2n = 14), B. richardsonii (2n = 28), B. pacificus (2n = 28), B. pumpellianus ssp. pumpellianus (2n = 56), and B. pumpellianus ssp. dicksonii (2n = 28), all indigenous, and B. inermis (2n = 56), an introduction. A taxonomic key, species descriptions, and comments are provided along with generalized distribution maps of the indigenous taxa.

PhytoKeys ◽  
2018 ◽  
Vol 100 ◽  
pp. 9-89
Author(s):  
Rosa del C. Ortiz

A monograph of Curarea, a neotropical genus in the plant family Menispermaceae, is presented. Curarea is distinguished from related genera by the combination of staminate flowers with sepals in two whorls and pistillate flowers with three petals, three carpels and usually elongated carpophores bearing three sessile drupelets. Nine species are recognised, amongst them two new to science, C.gentryana from Ecuador and C.barnebyana, from Ecuador and Peru. Additionally, two new combinations, C.iquitana and C.tomentocarpa, are proposed for distinct taxa recovered in a multivariate analysis of quantitative characters of the broadly distributed and morphologically variable C.toxicofera. The anatomy and morphology of species in the genus is documented, identification key, species descriptions, distribution maps and a preliminary conservation assessment for all accepted species are also provided. Of the nine species recognised here, C.barnebyana is assigned a preliminary status of Vulnerable, C.crassa (known only from the coastal Atlantic Forest in Brazil) and C.gentryana (endemic to western Ecuador) are both assigned a preliminary status of Endangered.


Phytotaxa ◽  
2021 ◽  
Vol 525 (4) ◽  
pp. 258-280
Author(s):  
ORLANDO ADOLFO JARA-MUÑOZ ◽  
JAMES E. RICHARDSON ◽  
JUAN CARLOS ZABALA-RIVERA

Casparya, one of the most species-rich sections of Begonia in the Neotropics with 44 species, is distributed from Costa Rica to Peru, with the highest diversity in the Colombian Andes. The section is morphologically well-differentiated and can be distinguished from other Andean cane-like begonias by the 3-horned fruit and multifid or un-divided styles. Here we describe eight taxonomic novelties for Casparya from Colombia, five species and three varieties, descriptions include illustrations, distribution maps, taxonomic comments, and assessments of conservation status. The five species described here are: Begonia diegoi, Begonia galeanoi, Begonia mamapachensis, Begonia perijaensis, and Begonia vinagrera; and the three new varieties are: Begonia kalbreyerii var. orquidensis, Begonia silverstonei var. brevipetiolata, and Begonia vinagrera var. pomecensis. We also present a taxonomic key for the 32 species of Casparya so far known from Colombia.


Bothalia ◽  
2002 ◽  
Vol 32 (2) ◽  
pp. 151-166 ◽  
Author(s):  
E. Retief

Trichodesma R.Br. is a genus of about 45 species known from tropical and subtropical regions of Africa. Asia and Australia. The group comprises predominantly perennial herbs, the flowers characterized by anthers with prolonged connectives, often twisting above the thecae. and a prominent accrescent calyx. Five species and three subspecies of 7rii hodesma are currently recognized in southern Africa, with  T. angustifolium Harv. subsp. argenteum Relief A.E.van Wyk newly described. These taxa are widespread in southern Africa, occurring in various vegetation types. A key to the species, descriptions, distribution maps and illustrations of various micro- and macromorphological as well as palvnological features are provided.


2009 ◽  
Vol 34 (2) ◽  
pp. 330-344 ◽  
Author(s):  
Neil Snow

Kanakomyrtus (Myrtaceae) is a newly described genus endemic to New Caledonia. Kanakomyrtus myrtopsidoides, the generic type, is transferred from Eugenia. Five new species are described: K. mcphersonii, K. revoluta, K. dawsoniana, K. prominens, and K. longipetiolata. The genus occurs in forests at elevations between 500–1,600 m on the relatively mesic windward side of the Grande Terre. It is distinct from other baccate genera of Myrtaceae by a combination of linear stylar lobes, densely glandular stamens and stigmas, and a short but densely hoary indumentum that is brownish when dry. The thinly membranous partitions that partially extend between the seeds of some species suggest a close relationship to Archirhodomyrtus and some species traditionally placed in Rhodomyrtus and Octamyrtus. Four of the six species have unisexual flowers, but much additional field work is needed to assess the reproductive biology of the genus. Following IUCN guidelines, four species are proposed as either Endangered or Critically Endangered, whereas the remaining species are considered Vulnerable and of Low Concern. Species descriptions, illustrations, distribution maps, and keys to species of the genus and related taxa of baccate Myrtaceae from New Caledonia are included.


Zootaxa ◽  
2010 ◽  
Vol 2347 (1) ◽  
pp. 1 ◽  
Author(s):  
CLIFFORD D. FERRIS ◽  
B.CHRISTIAN SCHMIDT

The genus Synaxis is synonymized with Tetracis. The thirteen North American species in genus Tetracis (some formerly in Synaxis) are discussed, including descriptions of three new species from western North America: Tetracis australis, T. montanaria, T. pallidata. Two additional species, “Synaxis” triangulata and “S.” brunneilinearia are excluded. A key to species, descriptions, check list, illustrations of adults and genitalia, and distribution maps are included. The formerly presumed lost types of the taxa aurantiacaria, cervinaria, and jubararia were located and are illustrated.


2019 ◽  
Vol 3 (6) ◽  
Author(s):  
Francisco Hita-Garcia ◽  
Ziv Lieberman ◽  
Tracy L Audisio ◽  
Cong Liu ◽  
Evan P Economo

Abstract Discothyrea Roger, 1863 is a small genus of proceratiine ants with remarkable morphology and biology. However, due to cryptic lifestyle, Discothyrea are poorly represented in museum collections and their taxonomy has been severely neglected. We perform the first comprehensive revision of Discothyrea in the Afrotropical region through a combination of traditional and three-dimensional (3D) cybertaxonomy based on microtomography (micro-CT). Species diagnostics and morphological character evaluations are based on examinations of all physical specimens and virtual analyses of 3D surface models generated from micro-CT data. Additionally, we applied virtual dissections for detailed examinations of cephalic structures to establish terminology based on homology for the first time in Discothyrea. The complete datasets comprising micro-CT data, 3D surface models and videos, still images of volume renderings, and colored stacked images are available online as cybertype datasets (Hita Garcia et al. 2019, http://doi.org/10.5061/dryad.3qm4183). We define two species complexes (D. oculata and D. traegaordhi complexes) and revise the taxonomy of all species through detailed illustrated diagnostic character plates, a newly developed identification key, species descriptions, and distribution maps. In total, we recognize 20 species; of which, 15 are described as new. We also propose D. hewitti Arnold, 1916 as junior synonym of D. traegaordhi Santschi, 1914 and D. sculptior Santschi, 1913 as junior synonym of D. oculata Emery, 1901. Also, we designate a neotype for D. traegaordhi to stabilize its status and identity, and we designate a lectotype for D. oculata. The observed diversity and endemism are discussed within the context of Afrotropical biogeography and the oophagous lifestyle.


Author(s):  
Renata Asprino ◽  
André Márcio Amorim

The taxonomic treatment of Hirtella (Chrysobalanaceae) from Bahia State, Brazil, is presented. We recognize 14 species; H. bicornis is recorded for the first time in the state and H. prancei was originally described from this study. The treatment includes an identification key to species, descriptions and comments on taxa, as well as illustrations and geographic distribution maps of species in Bahia. An identification key to the genera of Chrysobalanaceae in the state is also provided.


Phytotaxa ◽  
2013 ◽  
Vol 136 (1) ◽  
pp. 1 ◽  
Author(s):  
ÁNGELA CANO ◽  
MATHIEU PERRET ◽  
FRED W. STAUFFER

The palm genus Trithrinax is revised and three species and four varieties are accepted (T. brasiliensis var. brasiliensis, T. brasiliensis var. acanthocoma, T. campestris, T. schizophylla var. schizophylla and T. schizophylla var. biflabellata comb. nov.). This taxonomic treatment presents detailed and complete description of all taxa, based on the studies of natural populations in Argentina, Brazil and Paraguay, the morphological analysis of herbarium specimens (including all available types) and an exhaustive literature research. Illustrations are presented for all taxa and identification keys to the species and varieties are proposed. Species descriptions include updated distribution maps, information about their ecology, taxonomic notes and a compilation of common names and uses. The conservation status assessment reveals an important level of threatening for all taxa, ranging from vulnerable (VU) to endangered (EN), mainly due to the decline of the area of occupancy and the quality of habitat.


Zootaxa ◽  
2008 ◽  
Vol 1766 (1) ◽  
pp. 1 ◽  
Author(s):  
JEFFREY K. BARNES

The species of Ceraturgus occurring in the eastern United States and Canada are reviewed. A key to species, descriptions, illustrations of wings and some genitalic features, and distribution maps are presented. Ceraturgus fasciatus is resurrected from synonymy with Ceraturgus cruciatus, and Ceraturgus mabelae is reduced to synonymy with Ceraturgus nigripes (new synonymy). Ceraturgopsis is resurrected, assigned subgeneric rank, and Ceraturgus cornutus is fixed as type species. This work is dedicated to the memory of one of America’s foremost asilidologists, Joseph Wilcox.


1983 ◽  
Vol 31 (4) ◽  
pp. 421 ◽  
Author(s):  
PM Kloot

The genus Lolium is represented in Australia by the following five species: L. perenne, L. multiflorum, L. rigidum, L. loliaceum and L. temulentum. L. remotum is probably extinct in Australia as it has been found only associated with flax crops which are no longer grown locally. Natural and bred hybrids between the three outcrossing species are also found, viz. L. multiflorum × L. perenne (= L. × hybridum), L. multijlorum × L. rigidum and L, perenne × L. rigidum. Earlier botanical treatments of the genus in Australia are reviewed. A diagnostic key, species descriptions and ecological notes are presented.


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