Comprehensive Description
(
Inglês
)
fornecido por North American Flora
Urocystis Trillii H. S. Jackson, Mycologia 12; 151. 1920
Sori in the stems, petioles, and leaf-blades, scattered or clustered, forming subcircular to chiefly elliptic pustules 3-10 mm. in length (or by merging longer), covered at first by the epidermis but soon rupturing and disclosing the purple-black, dusty spore-mass mixed with white strands of plant-tissue; spore-balls firm, ovoid to subspheric, darkreddish-brown, consisting chiefly of 2-12 spores surrounded by a moderately tinted and thin-walled cortex of often collapsed sterile cells (about 8-14 m), 25-70 m in length; spores reddish-brown, ovoid to subspheric, flattened where in contact, with thick apparently smooth walls, 12-18 m in length or rarely longer.
On Trilli aceae :
Trillium chloropeialum, Oregon.
Trillium grandiflorum, Quebec.
Trillium ovatum, Idaho. Type locality: Corvallis, Benton County, Oregon, on Trillium Moropetalum. Distribution: Oregon, Idaho.
- citação bibliográfica
- George Lorenzo Ingram Zundel, John Hendley Barnhart. 1939. (USTILAGINALES); ADDITIONS AND CORRECTIONS, HOST-INDEX. North American flora. vol 7(14). New York Botanical Garden, New York, NY
