﻿586 Arthur: New species of Uredineae 



in two zones of 4-6 pores each, one above and one below the 

 equator. 



III. Telia hypophyllous, similar to the uredinia, chocolate- 

 brown; teliospores broadly ellipsoid, 19-23 by 23-27 ;u, rounded 

 above and below, moderately constricted at septum; wall chest- 

 nut-brown, 3-5 fi thick, with longitudinal ridge-like, parallel 

 striations, the pores lateral, indistinct; pedicel colorless, terete, 

 3-5 M thick, 145-165 fx long, the wall thickened to obliterate the 

 lumen except at the base. 



On Berberis haematocarpa Wooton {Odostemon haematocarpus 

 Heller), Organ Mountains, New Mexico, December 23, 1903, 

 3732; Filmore Canyon, Organ Mountains, New Mexico, Novem- 

 ber 9, 1908 (type); Queen, Guadalupe Mountains, New Mexico, 

 August I, 1909, all by E. O. Wooton. I am pleased to have the 

 opportunity to name this conspicuous and distinctive rust in 

 honor of the able botanist who has been highly successful in making 

 known the plants of New Mexico, and who not only supplied all 

 the specimens of the rust so far seen, but also detected and de- 

 scribed the host. The host is an evergreen shrub occurring on the 

 mountain slopes in the southern part of New Mexico and Arizona. 



tJromyces omatipes sp. nov. 



0. Pycnia not seen. 



1. Aecia scattered about the slightly swollen but not dis- 

 colored stem for 0.5-1 cm. in length, cylindric, 0.5-0.8 mm. high, 

 with margin erect, erose or lacerate; peridial cells rhomboidal, 

 18-21 by 26-32 n, overlapping, the outer wall smooth, 3-4 ti 

 thick, the inner wall verrucose, 5-7 ^ thick; aeciospores angularly 

 globoid or ellipsoid, 18-23 by 24-27 ju; wall colorless, 1.5-2 // 

 thick, sometimes appearing thicker, very inconspicuously verru- 



III. TeUa among the aecia, seemingly arising from the aecial 

 sorl, round, 0.3-0.5 mm. in diameter, rising somewhat above 

 surface of host, blackish brown; teliospores ellipsoid, 21-26 by 

 27-32 /z, rounded above and below; wall dark chocolate-brown, 

 often opaque, 2-2.5 M thick, thicker above, 5-7 fi, indistinctly 

 striate; pedicel colorless, joined to the spore by a tinted collar, 

 solid, 7-9 n in diameter above, increasing to 10-13 /x in lower part, 

 upper part smooth, lower part strongly rugose transversely. 



Urediniospores not uncommon in the telial sori, ellipsoid, 



21-24 by 26-33 m; wall golden brown, 1.5-2.5 jic thick, sparsely 



, the pores equatorial, indistinct but probably 4. 



