56 The North American Cup-Fungi 



8. Monilinia gregaria (Dana) Honey, Am. Jour. Bot. 23: 105. 



1939. 



Sclerotinia gregaria Dana, Phytopathology 11: 106. 1921. 



Conidia light-gray in mass, globose to lemon-shaped, 4 13 X 

 5-13 ju; microconidia globose produced singly on short sporo- 

 phores 2-3.5 /x in diameter. 



Apothecia gregarious pale-gray in color at first, later becom- 

 ing darker, at first cup-shaped later flat, circular, 1-5 mm. in 

 diameter, stipitate; stem 1-3 mm. in length; asci clavate, reach- 

 ing a length of 48-57 /x and a diameter of 5-6 /x, 8-spored; spores 

 1 -seriate, hyaline, containing two oil-drops, pointed at one end, 

 2-3.5 X 8-12 jLt; paraphyses simple, or branched reaching a 

 diameter of 2 /x. 



Conidial stage on living leaves and fruits of Amehinchier 

 Cusickii; the ascigerous stage on mummied fruits of the same host. 



Type locality: Pullman, Washington. 



Distribution: Known only from the t\'pe locality. 



Illustrations: Phytopathology- 11: pi. 8,j. 1-3. 



While this species has been recorded. Honey expresses some 

 doubt, suspecting that the wrong fungus ma\' have been reported 

 as the perfect stage of the Monilia. 



9. Monilinia Polycodii (Reade) Honey, Am. Jour. Bot. 23: 106. 



1936. 



Sclerotinia Polycodii Reade, Ann. Myc. 6: 110. 1908. 

 Monilia Polycodii Reade, Ann. Myc. 6: 110. 1908. 



Conidial stage {Monilia) on blighted shoots of the host, 

 effused, powdery, ash-gray to olive-buff, on stems, petioles, and 

 midribs at the base of the leaf-blades, or in minute cespitulae on 

 mummified fruits, the conidia citron-shaped, simple, h\aline 

 11-13 X 15 18 yu in long di- or trichotomously branched chains 

 with fusiform disjunctors 3 5 ^ long; sclerotia formed in the 

 mummified fruits; microconidia on mummified fruits in the 

 open and on spores and mycelium in cultures, sphaerical, 2.5-3 n 

 in diameter, hyaline with a central refractive spot. 



Apothecia single, or three or four from a mummy, 1-3.5 cm. 

 high, at first closed then expanding, cup-shaped or sometimes 

 convex and umbilicate .5-1 mm. in diameter, stipitate; hymenium 

 wood-brown, darker outside; stem smooth, cylindric, 1-3 mm. 

 thick and 1-3 cm. long; asci c>lindric-clavate, reaching a length 



