Comprehensive Description
provided by North American Flora
Gymnosporangium hyalinum (Cooke) Kern, Bull. N. Y. Bot
Gard. 7: 470. 1911.
Roesielia hyalina Cooke, Bull. Soc. Bot. Fr. 24: 315. 1877. Aecidium. hyalinum Farl. Bibl. Index 1 : 55. 1905.
Pycnia epiphyllous, rather few, gregarious, on discolored spots, noticeable, honeyyellow becoming brownish.
- bibliographic citation
- Joseph Charles Arthur, Frank Dunn Kern. 1912. (UREDINALES); AECIDIACEAE (continuatio), GYMNOSPORANGIUM. North American flora. vol 7(3). New York Botanical Garden, New York, NY
