CALIFORNIA ACADEMY OF SCIENCES. ]63 



Melampsora lini Desm. — On leaves and stems of Linum 

 Breweri, L. congesta, and L. drymarioides, April — August. 



3481. 



Cystopus candidus Lev. On leaves of Brassica r<tp<t, 

 Berkeley, Nov. 2903. 



C. cubicus Str. — On living leaves of Senecio lugens, San 

 Francisco, April. 3166. 



Graphiola Phcenicis Poit. — On Phoenix dactylifera, San 

 Francisco. 2070. 



Volutella buxi Berk. — On dead leaves of Buxus semper- 

 virens, San Francisco, Aug. 2748. 



Theclospora lateralis. Heaps scattered I — 1 mm. in 

 diameter: kypka white, branching, penetrating the thick 

 hyaline border of the spore and leaving it near the same 

 spot: spores smaller and with narrower border than in T. 

 bifida, 20 — 28//. — On rotting stems of Nerium Oleander, 

 Oakland, Feb. 2632. 



Differing curiously in appearance from the other species 

 in which the hypha seems to pass directly through the spore 

 emerging at the opposite side. In this the spores seem to 

 be attached along the side of the hypha, or where it is 

 broken seem to be terminal. 



DICRANIDION 



(Etym. Dikranos, a fork). 



Acervuli pale, scattered. Spores hyaline, septate, shaped 

 like a tuning-fork, attached by the closed extremity to short 

 branching hypha. 



D. fragile. Acervuli, rosy- white, minute, scattered: 

 spores hyaline, 4-septate, shaped like a tuning-fork, at- 

 tached by the closed extremity, easily separating, each 

 arm dividing near the centre, and near the base, forming 

 one rounded and four oblong segments; length of spore 

 12 — 16: width of arm, 4 — 5 /*. — On decaying Nerium Olean- 

 der, Oakland, Feb. 3631. 



In appearance much like Fusarium. 



