MONILINIA 57 



of 200-240 /x and a diameter of 10-14 n, 8-spored ; spores obliquely 

 1-seriate, ellipsoid, hyaline, simple, with two oil-drops, 10-12 X 

 15-20 fx; paraphyses slender, simple, 2 jjl thick, slightly enlarged 

 above. 



Parasitic on twigs and fruits of Polycodium stamineum. 



Type locality: Ithaca, New York. 



Distribution: New York. 



10. Monilinia Vaccinii-corymbosi (Reade) Honey, Am. Jour. 

 Bot. 23: 105. 1936. 



Sclerotinia Vaccinii-corymbosi Reade, Ann. Myc. 6: 109. 1908. 

 Monilia Vaccinii-corymbosi Reade, Ann. Myc. 6: 109. 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 on peduncles of blighted 

 flowers; citron-shaped, continuous, hyaline, the conidia 19-25 X 

 23-32 fi, in long di- or trichotomously branched chains, with 

 fusiform disjunctors 2 X 3-5 ix; sclerotia formed on mummified 

 fruits, microconidia on spores and mycelium in cultures 2.5-3 n, 

 globose, hyaline with a central refractive spot. 



Apothecia one to several from a single mumm\-, 1-3.5 cm. 

 high and 5-10 mm. in diameter, cup-shaped, somewhat convex, 

 or cyathiform, stipitate; hymenium fawn-colored, outer surface 

 darker and satiny; stem smooth, slender, cylindric, reaching a 

 length of 1-3 cm. and a diameter of 1-2 mm., slightly tapering 

 and shading into clove-brown below; asci cylindric-clavate, 

 reaching a length of 200-260 m and a diameter of 10 12 ;u, 8- 

 spored; spores obliquely 1-seriate, ellipsoid, 9-10 X 14-18 /x, 

 simple, hyaline, containing a few granules; paraphyses slender, 

 simple, 2-3 n in diameter, slightly swollen at the tips. 



Parasitic on twigs and fruits of Vacciniiim corymhosum. 



Type locality: Malloryville, New York. 



Distribution : New York and Massachusetts. 



Illustrations: Mycologia 20: pi. 13, f. d, e, i. 



11. Monilinia Oxycocci (Woron.) Honey, Am. Jour. Bot. 23: 

 105. 1936. 



Sclerotinia Oxycocci Woronin, Mem. Acad. Sci. St. -Petersburg. 36": 28. 1888. 



Conidial stage as in Monilinia Vaccinii-corymbosi. 

 Apothecia arising from sclerotia in the mummified fruits, 

 usually one from each sclerotium, stipitate, the stem often 4-5 



