Two new species of Myrcia sect. Reticulosae (Myrtaceae) from the campo rupestre of Minas Gerais, BrazilSpringer Science and Business Media LLC - Tập 72 - Trang 393-401 - 2020
Thiago Fernandes, Duane F. Lima, João Marcelo Alvarenga Braga
Two new species of Myrcia sect. Reticulosae, M. carassana and M. revoluta are
here described and illustrated. Myrcia carassana was firstly recognized in 1908
by A. F. M. Glaziou but never validly published. This species is similar to M.
venosissima but differs by reddish trichomes, inflorescences botryoid or reduced
to simple dichasia with longer peduncles, obconic floral buds and calyx lobes
inte... hiện toàn bộ
Diplachne and leptochloa (Poaceae) in North AmericaSpringer Science and Business Media LLC - Tập 31 - Trang 399-404 - 1979
J. McNeill
Most North American botanists includeDiplachne inLeptochloa but good evidence
for this treatment has never been provided. The diagnostic characters of these
two closely related genera of the tribe Eragrosteae are presented and the seven
species ofDiplachne and six ofLeptochloa occurring in America north of Mexico
are distinguished. Three new combinations are made inDiplachne:D. sect. Ipnum,
D. pan... hiện toàn bộ
A morphological study of PtilimniumSpringer Science and Business Media LLC - Tập 9 - Trang 136-145 - 1957
Nathan William Easterly
The genusPtilimnium, a native of the southeastern states, is composed of five
species. Two of these were previously placed inHarperella because the plants
bore phyllodes instead of finely dissected compound leaves. Investigation shows
that these “Harperella” species,P. nodosum andP. fluviatile, have a haploid
chromosome number of 6.P. capillaceum, P. nuttallii, andP. costatum have haploid
numbers ... hiện toàn bộ