Monographs Details: Axonopus fissifolius (Raddi) Kuhlm.
Authority: Maguire, Bassett. 1969. The botany of the Guayana Highland-part VIII. Mem. New York Bot. Gard. 18: 1-290.
Description:Distribution and Ecology - BRAZIL. Amazonas: immediately above Barcelos, Maguire et al 60053 (IAN,NY, US).
Paspalum fissifolium Raddi, Agrost. Bras. 26. 1823.
Axonopus purpusii (Mez) Chase, Jour. Wash. Acad. 17: 144. 1927.
In his comprehensive treatment of the genus Axonopus, Black (1963: p. 39-43;
56-59) recognized A. purpusii as distinct from A. fissifolius, but I can scarcely agree.
The principal key character used by Black to separate the two is pubescence on the
nerves of the lemma. In A. purpusii the nerves are "densely pubescent"; in A. fissifolius
"glabrous or sparsely hairy." Various degrees of pubescence are encountered,
however, on specimens of each species annotated by Black himself. Indeed, one
collection (Fiebrig 5003) is cited under both species and sheets so annotated are on
deposit at US. Axonopus fissifolius, as recognized here, is very common from Mexico
and Central America through tropical and subtropical eastern South America.
Distribution:Brazil South America