392 BOTANICAL GAZETTE [JUNE 
19. Uropyxis DALEAE (D. & H.) Magn.—On Parosela Dalea 
(L.) Britt. (Dalea alopecuroides Willd.), Guadalajara, Sept. 26, 1903, 
no. 5048: P. mutabilis (Willd.) Rose, Toluca, Sept. 19, 1898, no. 
3188; Amecameca, Oct. 20, 1903, no. 5196, Nov. 20, 1903, no. 5426: 
P. acutijolia (DC.) Rose, Cuautla, State of Morelos, Oct. 23, 1903, 
no. 5227: P. Holwayi Rose, Iguala, State of Guerrero, Nov. 3, 1903, 
no. 5319: P. trifoliata Rose, near Tacubaya, City of Mexico, Oct. 7, 
1896, without number; Aguascalientes, Oct. 9, 1903, no. 7705 (Rose 
& Painter). 
20. Uredo Aschynomenis, n. sp.—Sori mostly hypophyllous, 
grouped on small reddish spots, or scattered, subepidermal, small, 
globose, with pseudoperidium formed of imbricated paraphyses by 
the union of the slender stipes, the free capitate ends lining the inner 
wall, dehiscent by a central orifice; uredospores stylate, broadly 
elliptical or globoid, 14-18 by 16-23, wall pale yellow, thin, 14, 
very minutely verrucose, pores obscure, about 6, scattered.—On 
Aischynomene americana L.., Cuautla, State of Morelos, Oct. 22, 
1903, NO. 5220. 
The spores of this collection are much like those of Uropyxis Nissoliae, 
the hosts of the two species being closely related. But no genus of leguminous 
rusts known to the writer contains species with a pseudoperidium for the uredo. 
Until the teleutospores are discovered, it will be impossible to state the affinities 
of the species. 
21. Ravenelia Lysilomae, n. sp.—Spermogonia epiphyllous, 
crowded in small groups, punctiform, rather large, pale brownish- 
yellow, subcuticular, flattened hemispherical, 80-130” wide, one- 
fourth as high: teleutosori epiphyllous on pale spots, becoming 
amphigenous, small, o.25-0.5™™ across, chestnut-brown, subepi- 
dermal, numerous hyphoid paraphyses intermixed with the spores, 
inconspicuous; teleutospore-heads chestnut-brown, 7-9 cells across, 
80-120 in diameter, smooth, cysts appressed beneath the head, 
extending from periphery to pedicel, united laterally; pedicel color- 
less, short, deciduous; paraphyses cylindrical, 7-10 by 30-49A, 
light golden-brown, wall thin or rarely thick—On Lysiloma ter 
gemina Benth., Iguala, State of Guerrero, Nov. 3, 1903, NO. 5317- 
22. RAVENELIA VERRUCOSA Cke. & Ell—On Leucaena micro- 
phylla Benth., Iguala, State of Guerrero, Nov. 3, 1903, 00. 5314- 
