Panarctic Flora


343228 Puccinellia jenisseiensis (Roshev.) Tzvelev


Taimyr - Severnaya Zemlya: Rare
Shrub Tundra: Rare

Geography: Asian (N): SIB.

Notes: Tzvelev (1964c) effectively selected a lectotype for Puccinellia jenisseiensis when he excluded the only other possibly original specimen cited by Roshevitz as belonging to P. sibirica. The typification was formalized by Tzvelev (1976).

Puccinellia jenisseiensis is known from a few localities along the lower reaches of the Jenisei. It is reported to differ from P. vahliana in several assumed taxonomically significant characters, e.g., anthers distinctly longer, panicle diffuse with scabrous branches, lemmas shorter, unequal and not longitudinally plicate, and paleas without hairs on the keels. Tzvelev (1964c), however, threw some doubts on it when he stated it to be pollen sterile, as far as known at that time restricted to a single locality, and as a possible hybrid even if no putative parents were present in the vicinity. Plants with fully developed anthers have been found later. The species is only provisionally entered.

Higher Taxa