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Sivun Puccinia cressae Lagerh. 1889 kuva
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Puccinia cressae Lagerh. 1889

Comprehensive Description ( englanti )

tarjonnut North American Flora
Dicaeoma cressae (DC.) Kuntze, Rev. Gen
33:468. 1898.
Aecidium Cressae DC. Fl. Fr. 6: 89. 1815.
Puccinia Cressae Lagerh. Bol. Soc. Brot. 7: 131. 1889.
Puccinia cretica Holway, Erythea S: 31. 1897.
0. Pycnia not seen.
1. Aecia hypophyllous, numerous, crowded, covering entire under surface of leaf, shortcylindric, 0.3-0.6 mm. across; peridium whitish, the margin erect, denticulate or somewhat lacerate; peridial cells rhomboidal, 20-30 by 32-42 n, considerably overlapping, the outer and inner wall of about equal thickness, 7 /x; aeciospores angularly globoid, 15-22 by 18-26 ju; wall light-yellow or colorless, 1-1.5 [x thick, finely and inconspicuously verrucose.
II. Uredinia amphigenous, scattered, punctiform, roundish or irregtdar, up to 0.7 mm. across, early naked, pulverulent, cinnamon-brown, ruptured epidermis conspicuous; urediniospores obovoid or pyriform, 19-23 by 27-33 m; wall golden-brown, 1.5-2 fx thick, moderately echinulate, the pores 2 or more often 3, equatorial.
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bibliografinen lainaus
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
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North American Flora