Bueno, Vinicius R.Gostel, Morgan R.Heiden, Gustavo
9页
查看更多>>摘要：We describe a new species, Calea repanda, from Brazil and discuss novel morphological characters for the taxonomy of this genus. This new species is morphologically similar to C. gentianoides and C. diamantinensis but is distinct due to repand (vs. disc florets 30???40 (vs. 3???9), and fewer pappus scales 7???10 (vs. 15???20). Calea repanda is endemic to the Diamantina plateau in Minas Gerais state, Southeastern Brazil. We provide a map with the geographic occurrence of this species, an illustration with diagnostic characters, and the first taxonomic key for species of C. sect. Calea from Brazil. Furthermore, we propose a more detailed terminology to describe the proportion of the number of paleae and disc florets in the capitulum receptacle.
查看更多>>摘要：Sinosenecio jiuzhaigouensis (Asteraceae, Senecioneae), a new species from Jiuzhaigou county in northwestern Sichuan province, China, is described and illustrated. This species is similar to S. hederifolius and S. cyclaminifolius in having ovate-cordate leaf blade and solitary capitula, but differs by having swollen (vs. not swollen) rhizomes and smaller capitula (2???3 vs. 4???5 cm in diameter). Two floral micromorphological characters (configuration of filament collars and of anther endothecial cell wall thickenings), achene surface feature, and chromosome number of the new species are reported.
查看更多>>摘要：Thirty-seven years after the first collection in Cuba, Mycelephas robustus has been found in the Brazilian Amazon. The rediscovery of this species is also the first record of M. robustus in South America and the second in the world. A detailed morphological description is provided along with a comparative taxonomic discussion with the type specimen and with the only other known species, M. levisporus.
NSTL
Magnolia Press