PAPERS ON BOTANY 183 
15 », but distinct. Paraphyses none. Asci 51-61x14 u, 8- 
spored, inordinate. Spores slightly olivaceous, 14-7x7 p, ovate- 
elliptical. 
On Heterotrichum cymosum, Preston’s Ranch, 6768 (type), 
Maricao, 197, Villa Alba, 116, Utuado, 4359. 
The spots caused are of very distinctive character. The 
fungus differs from Laestadia melastomatum in absence of 
paraphyses and from physalospora multipunctata which has 
long pedicilled asci. 
Guignardia helicteres, sp, nov. 
Spots tan colored, circular, dead, 3-5 mm. in diameter, defi- 
nitely bordered by a thin purplish line. Perithecia immersed, 
dark, 125-160 » in diameter, ostiole dark bordered. No para- 
physes. Asci 8-spored, 68x14-17 ». Spores oblong, obtuse, 
continuous, hyaline, 17x5 p. 
On Helicteres jamaicensis, Barceloneta, 9260. 
Guignardia clusiae sp. nov. 
Spot none. Perithecia numerous, scattered over the lower 
surface of fallen leaves, 110-160 », black, sub-epidermal. Asci 
cylindrical, 8-spored, 65-72x7 ». Paraphyses none. Spores 
17-20x7 p, elliptical, continuous, hyaline. 
On Clusia grundlachai, Maricao 809, (type), 4774. 
Guignardia pipericola sp. nov. 
Spots circular 3-8 mm. in diameter, tissue but slightly 
changed and the spot evident chiefly for its perithecia. Peri- 
thecia numerous, 150 p» in diameter or oblong and 150x280 ug, 
black, imbedded in a gall-like structure due to hypertrophy of 
a few surrounding cells. Asci aparaphysate, long pediceled 
85x17», the long pedicel occupying about half of this length. 
Spores oval, hyaline, continuous, inordinate, 13-17x5 up. 
On Piper medium, Camuy, 4998 (type), Vega Baja, 370a 
Aguada, 5078, Trujillo Alto, 9401, Sta. Ana, 7615, Florida 
Adentro, 7648, Rio Tanama, 7949, 7869, 7872, Manati, 7701, 
Pefiuelas 9148, 3592, Piper marginatum, Lajas, 7180, Cabo 
Rojo, 2244, 6472. 
