20 BULLETIN 380, U. S. DEPARTMENT OF AGRICULTURE. 



CULTURAL CHAEACTERS. Cultures one month old on white corn meal have a 

 uniform cadmium orange to xanthine orange color. The entire surface is covered 

 with a compact growth, irregularly ridged. Tiny mars orange spore masses are 

 scattered irregularly over the surface. Cultures of this species closely resemble 

 E. fluens mississippicnsis on this medium, being distinguished by the smaller and 

 much less numerous spore masses. The medium is changed to amber brown 

 just below the mycelium, shading into mars yellow; whereas, in the case of 

 E. fluens mississippiensis the color of the medium is very little changed. 



TYPE LOCALITY. " Calcareous hills east of Santurce, Porto Rico, altitude 

 10 ft." 



GEOGRAPHICAL DISTRIBUTION. Porto Rico and French Guiana. 



EXSICCATI. Pycnidia and perithecia : Heller, Plants of Porto Rico, no. 4340. 



This species, which appears to be subtropical or tropical in its 

 range, is known at present from only three collections, the type col- 

 lection from Porto Rico, a collection by Prof. N. Wille, No. 816, 

 Porto Rico, distributed by the New York Botanical Garden, from 

 which the cultures were obtained ; and one made by Leprieur, No. 392, 

 in French Guiana, and determined by Montagne as Diatrype radicalis 

 (Schw.). A specimen of this collection apparently labeled by Mon- 

 tagne and preserved in the Delessert Herbarium at Geneva has been 

 examined and found to agree with the type material of E. longiros- 

 tris. It is readily distinguished from E. troplcalis by its smaller asco- 

 spores and pycnospores, and from E. -fluens by its narrower and 

 more acute ascospores and the long, slender necks of the perithecia. 



ENDOTHIA TROPICALIS Shear and Stevens sp. nov. 



SYNONYMS : 



Diatrype gyrosa Berk, and Broome, 1875, in Jour. Linn. Soc. [London], 



v. 14, p. 124. 

 Nectria gyrosa Berk, and Broome, 1877, in Jour. Linn. Soc. [London], 



v. 15, p. 86. 

 Cry phone ctria gyrosa (Berk, and Broome) Sacc., in Syll. Fung., v. 17, 



p. 784. 1905. 

 Endothia gyrosa (Schw.) Pckl., Hohnel, 1909, in Sitzber. K. Akad. Wiss. 



[Vienna], Math. Naturw. Kl., Abt. 1, Bd. 118, Heft 9, p. 1480. 

 TYPE SPECIMEN. No. 2807 S. and S., on Elacocarpus glandulifcr, Hakgala, 

 Ceylon, Coll. T. Fetch, August, 1913. 



PYCNIDIA. Stromata corticular, pustular to pulvinate, usually gregarious or 

 scattered, rarely confluent, 1 to 5 mm. in diameter, early becoming friable, 

 orange chrome when fresh to sanford brown when old and weathered ; pycnidia 

 consisting of numerous irregular cavities in the stroma ; sporophores mostly 

 simple, clavate, tapering above, 6 to 10 /A long. ; pycnospores continuous, oblong 

 to cylindric, very variable in size and shape, pale yellowish in mass, 3.5 to 

 7 by 1.5 to 2.5 /. 



PERITHECIA. Stromata the same or similar to those bearing pycnidia ; peri- 

 thecia black, membranous, collapsing when dry, 5 to 50 or more in a stroma ; 

 250 to 500 M diameter, irregularly arranged in one to three layers, bearing 

 slender necks which penetrate the stroma and project 0.25 to 1 mm., termi- 

 nating in acute ostioles; asci oblong or subclavate, nearly sessile, 40 to 50 by 

 7 /*; ascospores irregularly biseriate, subelliptical, obtuse, not constricted at 



