After a critical evaluation of the concept of dichotomous branching in Cormophytes the shoot apical meristems of Psilotum triquetrum and Selaginella speciosa are described. In Psilotum only the ...
Psilotum triquetrum, Swartz (Psilotum nudum (L.) Beauv.) has been listed recently around Port St. John's, Cape Province (Jacot-Guillarmod, A. personal communication, 1961) and in Natal, where it ...
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