Evolutionary Significance Of The Loss Of The Chloroplast‐Dna Inverted Repeat In The Leguminosae Subfamily Papilionoideae

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/137404/1/evo05207.pd

Great Plains Flora? Plant Geography of Eastern Montana\u27s Lower Elevation Shrub-grass Dominated Vegetation

Montana plant geography at elevations below montane forests broadly includes open shrub-grass or ponderosa pine dominated dry sites and riparian-wetland systems. In contrast to conventional wisdom, the floristic composition of these settings in eastern Montana does not reflect a strong Great Plains influence. State and county geographical distribution patterns suggestive of an influence of the Great Plains flora on that of eastern Montana involve only 52 species of mostly uncommon and narrowly distributed species of dicot forbs that do not compose a common type of characteristic Great Plains plant community in the state. In addition, the floristic similarity of the grass family, Poaceae, which is very diverse in open dry vegetation in Montana, reveals that Montana shares many more grass species in common with Utah than with the adjacent Great Plains state of South Dakota. Instead of the Great Plains biome, the low elevation flora and vegetation of Montana appears to be part of or influenced by the Pacific Northwest, Boreal, and the Intermountain biome. From the perspective of plant identification, the volumes of the Intermountain Flora works as well as or better across the state of Montana at low elevation dry settings compared to the Flora of the Great Plains or the Flora of the Pacific Northwest. The flora and vegetation of the open dry settings of eastern Montana is generally characteristic of the Intermountain sagebrush steppe and this should be considered in “prairie” restoration programs, especially when large ungulates like bison are proposed for reintroduction

Monophyletic subgroups of the tribe Millettieae (Leguminosae) as revealed by phytochrome nucleotide sequence data

Phylogenetic analysis of phytochrome (PHY) genes reveals the identity and relationships of four PHY loci among papilionoid Leguminosae. A phylogenetic analysis of loci combined according to species suggests that most of the tribe Millettieae belongs to one of two monophyletic clades: the Derris-Lonchocarpus or the Tephrosia clade. Together these two form a monophyletic group that is sister to a lineage represented by Millettia grandis of Millettia sect. Compresso-gemmatae. Collectively, this large monophyletic group is referred to as the Millettieae-core group, which based on our sampling, includes species of Millettieae that do not accumulate the nonprotein amino acid canavanine and that mostly have pseudoracemose or pseudopaniculate inflorescences. This new phylogenetic framework assists in targeting additional taxa for future sampling. For example, the \u27American Derris\u27 (Deguelia), which accumulate canavanine, might not be members of the Millettieae core group. Afgekia is also predicted not to be a member because it accumulates canavanine and has an inflorescence of terminal racemes. PHY gene analysis specifically reveals that certain genera traditionally classified in Millettieae are actually distantly related to the Millettieae core group, such as Austrosteensia, Callerya, Craibia, Cyclolobium, Fordia, Platycyamus, Poecilanthe, and Wisteria

Digits: Two Reports on New Units of Scholarly Publication

The Digits team (Matt Burton, Matthew J. Lavin, Jessica Otis, and Scott B. Weingart) convened around the question of how we might share, preserve, and legitimize scholarship freed from the affordances of print. For the A.W. Mellon-funded Digits Planning Grant (2016-2018), the PIs had three goals: - Investigate the use of software containers for research in the sciences, social sciences, and humanities. - Assess the infrastructural needs of digital humanists around publishing and preserving web-centric scholarship. - Gather a team of experts to guide the above activities and plan how they might inform a beneficial intervention into the scholarly ecosystem. Through our investigation into the scholarly uses of containers, we discovered that the technical infrastructure needed to connect containers with digital publications is underdeveloped. We see potential for container technologies to facilitate existing digital scholarly publications and afford new forms of computational scholarship, but this process would first require a series of infrastructural bridges. The digital scholarship needs assessment we conducted, as well as our advisory board meetings, made it clear that a targeted technological intervention alone would not be enough to welcome web-first publications into the scholarly ecosystem; in-tandem cultural and institutional changes are also necessary

DISTRIBUTION OF THE MOSS FAMILY GRIMMIACEAE IN NEVADA

Volume: 42Start Page: 583End Page: 58

THE IDENTITY OF CRACCA BENTHAM (FABACEAE, ROBINIEAE) IN THE UNITED STATES

Volume: 32Start Page: 95End Page: 10

A NEW SPECIES OF COURSETIA (FABACEAE: ROBINIEAE) FROM THE CHIHUAHUAN DESERT, MEXICO

Volume: 33Start Page: 182End Page: 18

Heteropterys laurifolia

Angiosperm

<i>Peltiera</i> (Fabaceae), vie et mort d’un genre « éteint » à Madagascar

Peltiera Du Puy &amp; Labat est un genre malgache, contenant deux espèces, supposé éteint à la date de sa publication en 1997, alors qu’il n’était représenté que par trois collections, toutes récoltées avant 1950. Toutefois, des travaux récents sur le terrain dans le centre-est de Madagascar ont révélé des populations encore vivantes, qui permettent la réexamination de la position phylogénétique et du statut du genre et de ses deux espèces. Les analyses phylogénétiques basées sur les études moléculaires (trnK chloroplastique et ITS du ribosome nucléaire) et les données morphologiques confirment la relation étroite entre Peltiera et Ormocarpopsis R. Vig., un genre de six espèces, également endémique à Madagascar. Peltiera diffère principalement d’Ormocarpopsis par ses fruits articulés et déhiscents. Les deux genres ensemble sont frères du genre Ormocarpum P. Beauv., largement distribué, surtout en Afrique. Les données morphologiques de répartition et d’habitat, recueillies sur les nouvelles récoltes, montrent qu’une seule espèce de Peltiera peut être reconnue, et que celle-ci partage des synapomorphies avec l’ensemble des espèces d’Ormocarpopsis ; elle est donc transférée dans le genre Ormocarpopsis sous le nom d’O. nitida comb. nov. Une carte de répartition et des photographies d’O. nitida comb. nov. sont présentées, et une évaluation du statut de conservation de cette espèce est proposée. Le nom Ormocarpopsis est lectotypifié et une description amendée du genre est donnée, avec sa nouvelle circonscription.Peltiera Du Puy &amp; Labat is a Malagasy genus of two described species thought probably to be extinct at the time of its publication in 1997, when it was known only from a total of three pre-1950 collections. However, recent field work in east-central Madagascar has resulted in the discovery of still extant populations, and therefore it is now possible to reconsider the phylogenetic position and status of the genus and its two species. Phylogenetic analyses based on molecular (chloroplast trnK and nuclear ribosomal ITS sequences) and morphological data corroborate the close relationship between Peltiera and Ormocarpopsis R. Vig., a genus of six species, also endemic to Madagascar. Peltiera differs from Ormocarpopsis mainly by having articulated, dehiscent fruits, and the two genera together are, in turn, sister to the widespread but mainly African Ormocarpum P. Beauv. Morphological, distributional and habitat data gathered from the new collections show that only a single species of Peltiera can be recognized, and as this species shares important synapomorphies with all species of Ormocarpopsis, it is transferred to this genus as O. nitida, comb. nov. A distribution map and photographs of O. nitida comb. nov. are presented, and a conservation threat analysis of the species is provided. The name Ormocarpopsis is lectotypified and an amended description of the genus with its new circumscription is given.</p