﻿I20 BOTANICAL GAZETTE [February 



Ravenelia Farlowiana Dietel, Hedwigia 33: 369. 1894; Sac- 



cardo, Syll. Fung. 11 : 211, 1895. — ^^S^ ^• 



Sori breaking forth between the cuticle and the epidermal 

 cells, mainly on the upper surface of the leaves and sparingly on 

 the leaf stems. Uredosori and uredospores not present- Teleuto- 

 sori orbicular, large, 4-5'"™ in diameter, dark brown, when old 

 with heads densely compacted into a crust-like layer, when young 

 with a central sorus surrounded by a circle of spores, usually 

 solitary; paraphyses none. Spermogonia present, chestnut-brown, 

 about 100 ft in diameter, subcuticular. Teleutospore heads very 

 irregular in shape and in size, chestnut-brown, usually smooth | 



but an occasional head with small warts on the margin, 50--106 

 by 40/1 thick, usual size 75-95/^; spores 5-8 in cross section, 

 very irregular in shape and size ; cysts hyaline, peripheral , 

 oblong ovate, with bases closely appressed to under side of heads, 

 swelling and bursting in water; pedicel short, hyaline, deciduous. 



On Acacia anisophylla and A. crassifolia: Mexico, Pringle. Specimens 

 examined from herb, of Dr, Farlow. 



Ravenelia opaca (Seym, and Earle) Dietel, Hedwigia 34: 

 291. 815 ; Saccardo, Syll. Fung. 14; 363. 1899. — Fig. 5. 



Rave^ielia indica forma opaca Seym, and Earle, Econ. Fungi no. 203. 



Sori subepidermal, scattered or solitary on both sides of 

 the leaves but mainly on the upper surfaces. Uredosori and 

 uredospores not present. Teleutosori black, shining, large, 1-2'°'" 

 in diameter; teleutospore heads black, opaque, orbicular, smooth, 

 8o-i20/i in diameter; 5-6 spores in cross section, spores 20-26 



■ 



by 33/^» apex intensely black-brown for 7-10 /i; cysts globose, 

 hyaline, pendent around the pedicel, swelling and bursting in 

 water. Pedicel long, compound hyaline. 



On Gleditschia iriacanthus : Clear Creek, Union co., 111., i^. S, Earle, 

 Aug, 13, 1890. 



RavexXELIA verrucosa Cke. and Ell., Jour. MycoL 3:83. 

 1887; Grevillea 15: 112. 1887; Saccardo, Syll, Fung. 7: 772. 

 1888 ; Dietel, Hedwigia 33 : 41-42, 66. 1894. — Fig. g 



Sori subepidermal, on both sides of the leaves but mainly 

 on the upper surface. Uredospores intermixed with the teleuto- 

 spores, brown, spinulous, oval to globose, 15-18 by 17-20 At; germ 

 pores many, scattered ; paraphyses many, cylindrical, hypha-like, 



