12 PROCEEDINGS OF THE AMERICAN ACADEMY 



by a row of small cells from which the latter spring directly. Spores 

 hyaline, fusiform, septate near one extremity, surrounded by a gelati- 

 nous envelope, 60 X 5 yu,. Perithecia 150-120 fx X 50-60 ju Para- 

 physes, short 150-180 /a; long 700-740 /x. Total length to tip of 

 peritheciura 400-450 jx. Maximum length to tip of paraphyses 950 /u,. 



On Patrobus longicornis. Connecticut; (Maine, Dr. Townsend). 



A remarkable form, nearly if not quite as large as the preceding 

 species, and resembling a minute crustacean from its many projecting 

 appendages. It is allied in the structure of its receptacle to the species 

 figured by Peyritsch (1. c. 1873, Plate I. fig. 9), and referred by him to 

 L. fascicidata ; a manifest error, as a glance at the mature plant (fig. 8) 

 must show. 



Laboulbenia Rougetii Mont, et Robin. 



Laboulbenia Rougetii Mont, et Robin, Hist. Nat. d. Veg. Paras., p. 622, 

 Plate X. fig. 2. 



To this species I have referred a form occurring on Plafynus, which 

 corresponds so closely to Robin's figures that I am inclined, for the 

 present, to consider it merely a variety of this species. A comparison 

 of more extensive material than I possess may show that it is distinct ; 

 yet the early stages, as well as the mature individuals, show such 

 slight variations from the figures of Rougetii that it would be unsafe, 

 at present, to refer it to any other species. 



On Platinus cincticollis. Connecticut. 



Laboulbenia fdmosa nov. sp. 



Color smoky brown with an olive tinge. Perithecium long-ovoid or 

 ovoid, the apex with its hyaline pore often truncate, hardly oblique. 

 Pseudoparaphyses arising from a base of three or four cells, itself 

 seated on a thin black disk. Pseudoparaphyses arising from three or 

 four inner basal cells, the walls of which are not distinct. From the 

 outer of these basal cells extends a row of cells curving outwards and 

 downwards (this portion is commonly broken oflf in specimens), black 

 beneath, and giving rise to a variable number of straight, erect, sim- 

 ple, colorless branches. The inner basal cells give rise to numerous 

 branches, erect, slender, septate, colorless, sometimes ten in number, 

 often twice as long as the perithecium ; the shorter, inner branches 

 sometimes subclavate. Receptacle broad, tapering somewhat abruptly 

 to its usually slender basal cell ; supra-basal cell larger, broad : above 

 it, on the inner side, two cells which separate it from the perithecium, 

 which is itself seated on two or three small cells; above it, on the 



