NOTICES OF NORTH AMERICAN FCNGI. 103 



Pustules small ; ostiola sliort ; sporidia obovate, divided hori- 

 zontally and vertically, -0008 long. 



879. Valsa mesoleuca. B. d: C. — Disco albo, ostiolis cincto vel 

 consperso; sporidiis allantodeis hyalinis. 



On Viburnum dentatum. Pennsylvania, Michener. No. 4207. 

 Disc white, surrounded by the black ostiola, or sometimes 

 dotted ; sporidia hyaline, sausage-shaped, -0008 long. 



* Valsa quatexnata. Fr. — On poplar and Alnus sermlata. 

 Pennsylvania, Michener. No. 4102. 4229. Vermont, Rev. J. D. 

 Russell. No. 5888. 



Sporidia -0005 long. 



* Valsa aculeans. Sc7i?vein. — On Rhus typhina. Massachusetts. 

 No. 3376. 



Sporidia fusifoiTQ, narrow, triseptate,-0006 long. 



* Melanconis chxysostxoma. Tvl. — On Quercus alba. No. 

 2961. 



* Gibbeza pnlicazis. Fr. — On Zea. Car. Sup. No. 301. On 

 wheat. No. 897. Car. Inf. No. 3843, 2126, 2218. Ravenel. 

 No. 1831. On Hibiscus syriacus. No. 2726. On Brassica. 

 Car. Inf. No. 6017. On Gourd. Pennsylvania, Michener. No. 

 3821. On Juglans nigra. No. 3421. 



* Gibbeza Saubinetii. jVont. ^ Bur.— On Zea. Car. Inf. No. 

 1412, 1431. New England, Murray. No. 6282. Pennsylvania, 

 Michener. On Scirjms pungens. No. 4381. On willow. No. 

 4372. 



* Dothidea gzaminis. Fr.—Car. Sup. No. 370, 663, 746. Car. 

 Inf. No. 3205, 3221. Ravenel. No. 1804. On Scirjms. New 

 York, Sartwell. No. 3466. 



Sporidia -0004 long. 



* Dothidia gangzaena. Fr. — On leaves of Isolepis capillaris. 

 Car. Inf. No. 1653. Ravenel. No. 1657. 



Sporidia narrow, as in D. stenospora, B. & Br., Journ. Linn. 

 Soc. xiv., p. 134. 



Alabama, Beaumont. No. 4658. Sporidia "001 long. 



* Dothidea canaliculata. Schwein. — On leaves of Cyperus 

 Baldwinii. No. 1755. 



* Dothidea Tzifolii. Fr. — On leaves of clover. Pennsylvania, 

 Michener. No. 3489. Canada, Poe. No. 6165. 



880. Dothidea pezispozioides. B. Sf C. — Superficialis reticulata 

 nigra ; ascis clavatis ; sporidiis uniseptatis medio constrictis. 



On leaves of Ehyncosia monophylla. Car. Inf. No. 1263. On 

 Indigojera CaroUniensis. No. 1289. Ravenel. 



Forming a net work on the upper surface of the leaves ; asci 

 clavate ; sporidia biseriate, oblong, nniseptate, constricted at the 

 septum, obtuse or slightly pointed at either end, 0012 long. 



