Comprehensive Description
(
anglais
)
fourni par North American Flora
Dicaeoma melanocephalum (Sydow) Arthur & Fromme
Puccinia melanocephala Sydow, Ann. Myc. 5: 500. 1907.
O and I. Pycnia and aecia unknown.
Uredinia hypophyllous, scattered, round, 0.3-1 mm. in diameter, eariy naked, pulverulent, cinnamon-brown, rupttued epidermis conspicuous; paraphyses peripheral, borne on Pa^T 5, 1920] AECIDIACEAE 341
branched, septate, colorless, thin-walled hyphae, capitate, 16-19 by 32-48 m, the wall light golden-brown, 2-3 m thick, smooth, the stalk often very short; urediniospores ellipsoid, 23-26 by 23-37 fi; wall cinnamon-brown, thick, 2.5-3 ju, rather sparsely and prominently echinulate, the pores 4 or 5, approximately equatorial.
- citation bibliographique
- Joseph Charles Arthur, Fred. Denton Fromme, Frank Dunn Kern. 1920. (UREDINALES); AECIDIACEAE (continuatio); DICAEOMA ON POACEAE (continuatio), DICAEOMA ON CAREX. North American flora. vol 7(5). New York Botanical Garden, New York, NY
