Comprehensive Description

provided by North American Flora
Urocystis Tritici Korn. Hedwigia 16: 33. 1877 Tuburcinia Tritici Liro, Ann. Univ. Fenn. Aboen. A. 1': 17. 1922.
Sori chiefly in the leaves (occasionally in the stem and rarely in the glumes), forming elongate striae, more or less merged and often involving most of the parenchyma, at first covered by epidermis and lead-colored but eventually rupturing and shedding the granular black spore-mass; spore-balls dark-reddish-brovvn, irregularly subspheric to oblong, composed of 1-3, rarely 4 or 5 spores, covered rather completely by a cortex of deeply tinted sterile cells (subspheric to oval, 6-12 /i long as applied to spores), chiefly 20-40 ;u in length ; spores dark-reddish-brown, irregularly ovoid to subspheric, apparently smooth, chiefly 12-18/1, rarely 20 ij. in length.
On Poaceae:
Triticum aestivum (T. vitlgare), Illinois, Kansas, Missouri.
Type locality: South Australia, on Triticum vulgare.
Distribution: Illinois, Kansas, Missouri; also in Australia, Europe, and Asia.
bibliographic citation
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
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