Plants Collected by Dr. George F. Gaumer in 188^, Sr. 



Porfirio Valdez in 1896, and the Author 



in 1887 and 189^. 



FUNGI.* 



Agaricus Yucatanensis, E. & E., sp. nov. (Plate VIII). 



On deca3'ing vegetable matter, 4 inches high, ashen gray. Iza- 

 mal, common, Aug. (788). 



Psallioia. Pileus 4 to 5 cm. diameter, thin, buff color, sulcate- 

 striate from the margin half-way to the convex disk which is 

 clothed with small, innate, darker-colored permanent scales. 

 Lamellae moderately crowded, thin, a little over i mm. wide, 

 margins entire, attenuate-free. Stipe slender, 5 to 6 cm. high, 

 2 to 3 mm. thick, attenuated above. Ring medial, narrow. 

 Spores brown, ovate-elliptical, about 7x4 //. 



The brown spores alone separate this from Lepiota. 



Aspergillus flavus, Lk. 



On various plants that were allowed to remain too long in plant 

 press without changing driers. 



Aspergillus fuliginosus, Peck? 

 On leaves of Epidendrum sp. 



Asterina Yucatanensis, E. & E., sp. nov. (Plate IX). 



On living leaves of Pterocarpus sp. 



Amphigenous, but mostly epiphyllous, on suborbicular indefi- 

 nite yellowish spots 3 to 4 mm. diam. When occurring on the 

 lower surface of the leaf, then mostly without spots, in scat- 

 tered patches of irregular outline i or more cm. across. Perith- 

 ecia convex-hemispherical, iio to 130 <). diam., subastomous, 

 black, of fibrous texture, suboblong, fringed with a black, retic- 

 ulated m3^celium and bearing more or less abundantly, brown, 

 septate, bristle-like hairs, 50 x 3 //.. Asci oblong-elliptical 40 to 

 50 X 20 to 25 //, short stipitate or sessile, 8-spored. Sporidia oblong- 

 elliptical, uniseptate in the middle and deeply constricted, dark 

 brown, 20 to 2 x 8 a. 



Gloeosporium affine, Sacc. 



On leaves of Epidendrum sp. 



Macrophoma Surinamensis (B. & C). 

 On leaves of Epidendrum sp. 



♦Determined by Mr. J. B. Ellis. 



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