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THE ANATOMY OF BARBACENIOPSIS, A NEW GENUS RECENTLY DESCRIBED IN THE VELLOZIACEAE
Author(s) -
Ayensu Edward S.
Publication year - 1968
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1968.tb07393.x
Subject(s) - biology , genus , botany , zoology , anatomy , evolutionary biology
Although the two species in Barbaceniopsis — B. boliviensis and B. vargasiana —have in common many features which support their inclusion in one genus, there are also obvious differences in the depth of leaf furrows, absence of hairs in B. vargasiana , and type of girder sclerenchyma in the leaf. The presence of vessels in the leaf has been demonstrated. The frequent observation that the roots cling tightly only to stems of Vellozia species is shown to be characteristic of the family. A comparison of the three genera clearly indicates that there are obvious anatomical characters which help to distinguish Barbaceniopsis and Barbacenia from Vellozia . Although it is not suggested that Barbaceniopsis be reduced to synonymy, there can be no doubt that it is very closely associated with Barbacenia .