Flora of Singapore precursors, 14. Notes on Apocynaceae
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چکیده
منابع مشابه
Some notes on taxonomy and diversity of Onosma with emphasis on important evidence and complex groups in Flora Iranica
Onosma L. as a rich taxa in Boraginaceae including about 150–180 species, centered mainly in Irano-Turanian region. The genus faced with several systematic complexities lead to many identification problems as well as morphological polymorphism. Several authors have used setae characteristics in Onosma as the most important diagnostic evidence in delimitation and classification of species in add...
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• P = {1, 2, 3, . . .} • Seq = {< n1, . . . , nk > | k > 0, n1, . . . , nk ∈ P}. p, q, r and s, possibly decorated, are metavariables ranging over Seq. • If p =< m1, . . . ,mk > and q =< n1, . . . , nl > then p ∗ q = 〈m1, . . . ,mk, n1, . . . , nl〉. • p ∗ 〈 〉 = 〈 〉 ∗ p = p for every p ∈ Seq. • p 6 q iff there is s such that p ∗ s = q. Definition 1.1 (Trees). T ⊆ Seq is a tree iff: 1. q ∈ T and ...
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Four asclepiadaceous types not listed in a previous type catalogue of the collections of the Instituto de Ecología y Sistemática, Habana, Cuba (HAC) are provided, along with a discussion of typification problems associated with the associated Charles Wright collections. Lectotypifications are provided for Gonolobus stephanotrichus Griseb., Orthosia acuminata Griseb., Orthosia oblongata Griseb.,...
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ژورنال
عنوان ژورنال: Gardens' Bulletin Singapore
سال: 2019
ISSN: 0374-7859,2382-5812
DOI: 10.26492/gbs71(1).2019-04