﻿130 BOTANICAL GAZETTE , [February 



confluent and causing large swollen places of several centi- 

 meters in extent; teleutospore heads irregularly orbicular, chest- 

 nut-brown, 80-125 \h broad, beset with pale brown papillae (3 by 

 4_6 ^\ ; 4-6 spores in cross section, each spore crowned with 



several (4-8) papillae. 



On Indigofera cuernavacana Rose : Cuernavaca, Mexico, Sept. 28, 1898, 



no. 3120, Holway. 



On hidigofera Palmeri Wats. : Oaxaca, Mexico, Oct, 19, 1899, no, 3682, 



Hohvay. 



Pleoravenelia brongniartiae (Diet, and Holw.) — Fig, 20, 



Ravenelia brongniartiae Diet, and Holw., Box. Gaz. 35 : 1 897; Saccardo, 

 Syll, Fung, 14:368. 1899, 



Sori breaking forth from beneath the epidermis. Uredosori 

 single or clustered, on both sides of the leaves, cinnamon-brown, 

 spots large, yellow, about 5™"^ in diameter; uredospores ovate 

 to globose, 23-30 by 18-25^1, spinulose ; germ pores many, 

 scattered ; paraphyses none. Teleutosori not on spots, black ; 

 teleutospore heads orbicular, 85-1 15/x in diameter, chestnut- 

 brown, entire surface densely covered with large warts, while 

 each marginal spore has one large dark brown blunt process ; 5-6 

 spores in cross section, spores 1 6-2 i/x long; cysts united into 

 a coniform body which is decurrent into the pedicel; pedicel 

 compound, short, hyaline. 



On Brongniariia sp.: Cuernavaca, Mexico, Sept. 29, 1899. no. 359i> 

 Holway ; Sept. 28, 1898, no. 3022 and no, 3170, Sept. 23, 1896. 



On Brongniariia sericea : Oct. 18, 1899, no. 3663, Holway, 



On Brongniartia intermedia: Tizapan, near City or Mexico, Sept. 27, 

 1899, no. 2S^^H> Holway, 



All from Herb. E, W. D. Holway. 



Pleoravenelia talpa, n. sp. — Fig 22, 



Sori subepidermal, thickly distributed over both sides of the 

 leaves. Uredosori few, ochraceous, surrounded by the ruptured 

 epidermis, small ; uredospores brown, walls thick, verrucose, 

 ovate to subglobose, usually inequilateral, 25-32 by 18-22/x, 

 usual size 30 by 20/i; germ pores equatorial, 4-6, not easily 

 visible even after boiling in lactic acid ; paraphyses none. 

 Telutosori small, black-brown, many, surrounded by the rup- 



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