50 [Assembly 



Godronia Cassandrs9, n, sp. 



Receptacle small, .02 to 03. in. broad, sessile or nearly so, depressed, 

 urceolate, tawny-brown, the hymenium whitish or livid when moist, 

 darker when dry, the narrow mouth entire or slightly dentate-lacerate, 

 almost closed when dry ; asci cylindrical, .0045 to .005 in. long, .0003 

 to .0004 broad ; spores filiform, nearly straight, .002 to .003 in. long ; 

 paraphyses filiform, numerous. 



Dead branches of leather leaf, Cassandra calyculata, Earner. Aug. 



Tympanis saligna, Tode. 



Dead branches of willow, Salix purpurea. "West Albany. Apr. 

 The specimens are without fruit and to this extent doubtful. 



Stictis Saccardoi, Rehm. 

 Dead stems of scouring rush, Equisetum. hyemale. Delmar. Sept. 



Lichenopsis sphseroboloidea, Schiu. 

 Dead stems of Cornus. Elizabethtown. May. 



Asoomyces extensus. Ph. 



Spots large, irregular, brown, usually somewhat convex above and 

 concave below, most frequently occurring at the apical end of the leaf 

 or of its lobes ; asci hypophyllous, cylindrical, obtuse or subtruncate, 

 .002 to .0025 in. long, .0009 to .0011 broad ; spores globose or broadly 

 elliptical, variable in size, .00016 to .0003 in. long, .00016 to .00025 

 broad. 



Living leaves of the over-cup oak, Quercus macrocarpa. Platts- 

 burgh. July. Oen. J. M. Robertson. 



The specimens were first sent by Gen. Robertson to the editors 

 of the Country Gentlemaji, with the information that nearly every 

 leaf on the tree was affected in a manner similar to those sent. In 

 these the dead spots occupied one-fourth to one-half the entire leaf. 

 They number from one to three spots on a leaf. It is very evident 

 that the vital functions of leaves so extensively affected must be much 

 impaired, and that the health and vigor of the tree must be corre- 

 spondingly weakened. It was also stated that many other oaks in that 

 region were similarly affected. The species is distinct from A. Quercus 

 Oke., in the character of the spots and also of the spores. 



Microsphaeria Cseanothi, (Schio.). 



Living leaves of New Jersey tea, Ceanothus Americanus. New 

 Scotland. Oct. 



This appears to be the fungus described by Schweinitz ?l& Erysiphe 

 Ceanothi, although the perithecia in our specimens can scarcely be de- 

 scribed as " immersed" and the species is a Microsphasria, not an Ery- 

 siphe. It is closely related to M. penicillata, having about four eight- 

 spored asci in a perithecium, but it differs from that fungus in occur- 

 ring only on the upper surface of the leaves. It sometimes attacks 

 the immature fruit which it covers with a more dense white mycelium. 



