ARTHUR: NEW SPECIES OF UREDINEAE 119 
Puccinia massalis sp. nov. 
O. Pycnia amphigenous and caulicolous, rather conspicuous, 
subepidermal, 112-120 yu broad. 
I. Aecia amphigenous and caulicolous, crowded in irregular 
groups 2-10 mm. across on the blades, often 6-20 mm. long on the 
stems, petioles and veins, causing distortion of the host, cylindric, 
‘0.5-0.8 mm. in diameter, 0.5-1 mm. high; peridium with erect 
margin, erose or somewhat lacerate; peridial cells rhombic, 19-27 
by 32-45 u, the outer wall 7-10 thick, smooth, the inner wall 
5-10 yu, closely tul late ; aeciosp ellipsoid, 16-18 by 22-27 u; 
wall colorless, 1.5-2 thick, very closely and inconspicuously 
verrucose. 
II. Uredinia amphigenous, scattered, round, 0.8-1.2 mm. in 
diameter, pulverulent, cinnamon-brown; urediniospores irregularly 
ellipsoid, obovate or oblong, 18-24 by 27-35 4; wall light cinna- 
mon-brown, I—1.5, thick, moderately echinulate, the pores 2, 
equatorial. 
- II. Telia similar to the uredinia, pulvinate, chocolate-brown ; 
teliospores ellipsoid, 23-32 by 39-48 u, rounded above and below, 
slightly or not constricted at septum; wall dark chestnut-brown, 
thick, 3-5 u, thickened and lighter-colored over the germ-pores, 
9-10 », smooth, the pore of upper cell apical, of lower cell usually 
half way to hilum or occasionally at septum; pedicel colorless, 
once to thrice length of spore. : . 
On Helianthus ciliaris DC., Las Cruces, New Mexico, October 
27, 1892, I, III, E. O. Wooton; Ysleta, Texas, February 24, 1914, 
Ill, Arthur & Fromme 5704; Mesilla Park, New Mexico, October 
7, 1914, III, and May 9, 1915, I, W. A. Archer; Albuquerque, 
New Mexico, December, 1914, III, W. H. Long 5183; Brazito, 
New Mexico, June 15, 1915, I, II, I], W.A. Archer (type). This 
is a much more robust species than Puccinia Heliantha Schw., 
to which most of the collections here cited have been referred 
(Mycologia 8:159. 1916). The aecia are much larger, and cause 
swelling of the adjacent tissues, even giving the appearance in 
some cases of being a systemic rust. Both the aeciospores and 
teliospores have far thicker walls. 

Puccinia invelata Jackson, sp. nov. 
O. Pycnia epiphyllous, gregarious, few, inconspicuous, sub- 
epidermal, 115 u broad. 
I. Aecia hypophyllous, solitary or in groups of two or three; 
peridium lacerate; peridial cells ellipsoid, 14-18 by 27-35 u, over- 
