The Bryologist 104(2), pp. 268-273 Copyright ? 2001 by the American Bryological and Lichenological Society, Inc.
Orthotrichum
underwoodii,
sp. nov. (Orthotrichaceae,
Bryopsida)
from California
RICARDO GARILLETI
Departamento de Medio Ambiente, Facultad de Ciencias, Universidad Europea de Madrid. E-28670, Villaviciosa de Od6n, Spain; e-mail:
[email protected] FRANCISCO LARA AND VICENTE MAZIMPAKA
Departamento de Biologia (Botanica), Facultad de Ciencias, Universidad Aut6noma de Madrid, Cantoblanco, E-28049 Madrid, Spain; e-mail:
[email protected], e-mail:
[email protected]
A new moss species, Orthotrichum underwoodii F. Lara, Garilleti & Mazimpaka, is Abstract. described from material kept in the New York Botanical Garden Herbarium. The new taxon is included in subgenus Pulchella (Schimp.) Vitt, and characterized by leaf cells pluripapillose; capsule immersed, cylindric, abruptly contracted to the seta whose apical part is hidden in a hollow; operculum conic-convex; stomata cryptopore and located in the lower capsule half; capsule with 8 short exothecial bands, comprising 2(3) cell rows; exostome with 16 whitish teeth recurving irregularly; and endostome with 16 segments uniseriate. Orthotrichum underwoodii is taxonomically close to 0. handiense F. Lara, Garilleti & Mazimpaka recently described from the Canary Islands (Spain). Differences of the two mosses and possible confusion of the new species with others are discussed.
On 22 July 1888, L. M. Underwood collected from the surroundings of Pajaro (Santa Clara Co., California) an Orthotrichum, which so attracted his attention that he separated it from the remaining sample-identified as 0. cylindrocarpum Lesq.by the following indication:
