Part 8, 1922 AECIDIACEAE 593 
tured epidermis inconspicuous; teliospores oblong or ellipsoid, 16-21 by 26-32 u, rounded or 
obtuse above, rounded or somewhat narrowed below, slightly constricted at septum; wall 
golden- or chestnut-brown, rather thick, 1.52.5 y, slightly thickened at apex up to 5 », smooth; 
pedicel slightly yellowish, up to twice length of spore. 
ON RANUNCULACKAE: 
Clematis sp., Alabama. 
Typz LocaLity: North America [Alabama], on Clematis sp. 
DistRiBuTION: Known only from the type locality. 
8. Puccinia vergrandis Arth. & Holway; Arth. Am. Jour. Bot. 
5: 474. 1918. 
I. Uredinia not seen; urediniospores in the telia obovoid, 26-32 by 32-40 4; wall golden- 
brown, thick, 32 below, thickening gradually up to 5 at apex, coarsely and moderately 
echinulate, the pores 2-4, approximately equatorial or slightly superequatorial. 
III. Telia mostly hypophyllous, confluent in round or oblong groups 2-4 mm. across, 
round, 0.3-1 mm. in diameter, early naked, chestnut-brown becoming cinereous from ger- 
mination, ruptured epidermis evident; teliospores ellipsoid or oblong, 29-31 by 37-45 y, rounded 
above, blunt below, slightly constricted at septum; wall golden- or cinnamon-brown, rather 
thick, 1.5-2.5 uw, thicker above, 4-7 u, rugosely verrucose; pedicel colorless, fragile. 
On DILLENIACEAE: 
Saurauja pauciserrata Hemsl., Guatemala. 
TYPE Locality: Colomba, Quezaltenango, Guatemala, on Saurauja pauciserrata. 
DisTRIBUTION: Known only from the type locality. 
9. Puccinia Johnstonii Arth. Mem. Torrey Club 17: 149. 1918. 
II. Uredinia hypophyllous, scattered, roundish, small, 0.2-0.3 mm. across, tardily naked, 
at first opening by a pore, becoming pulverulent, cinnamon-brown, the overarching epidermis 
quite persistent; paraphyses peripheral in a single row, erect, arising from a short membranous 
base 2 or 3 cells deep, terete, 10-13 by 37-77 u, the inner wall about I u thick, the outer wall 
3-7 yw, colorless, smooth; urediniospores ellipsoid or broadly obovate, 23-29 by 37-48 u; wall 
cinnamon-brown, 1.5-2 4 thick, thicker above, 5-9 yu, with a lighter umbo, sparsely and 
strongly echinulate, the pores 4, sometimes 3, equatorial. 
III. Teliospores in uredinial sori, ellipsoid or oblong, 23-30 by 33-40 yu, rounded at both 
ends, not constricted at septum; wall dark chestnut-brown, uniformly 3 » thick, sparsely and 
coarsely echinulate, the points 1-2 » long; pedicel colorless, rough, 10 by 16-23 », the upper 
part swelling in water up to 16 », often attached somewhat obliquely. 
On SAPOTACEAE: 7 
Dipholis salicifolia (L.) A. DC., Cuba. 
Sideroxylon foetidissimum I,., Cuba. 
Type LocaLity: San Diego de las Bafios, Pinar del Rio, Cuba, on Dipholis salicifolia. 
DISTRIBUTION: Western Cuba. 
10. Puccinia Marsdeniae Dietel & Holway; Holway, Bot. Gaz. 
31: 330. 1901. 
II. Uredinia mostly hypophyllous, scattered, round, 0.2-0.6 mm. across, early naked, 
pulverulent, cinnamon-brown, ruptured epidermis evident; urediniospores broadly ellipsoid 
or globoid, 26-29 by 29-344; wall golden- or cinnamon-brown, thick, 2.5—-3.5 u, moderately 
or sparsely and very prominently echinulate, the pores about 6, scattered, rather indistinct. 
III. Telia mostly epiphyllous, scattered, round, 0.2-0.6 mm. in diameter, early naked, 
pulverulent, dark chocolate-brown, ruptured epidermis evident; teliospores ellipsoid, 27-32 
by 35-42 », rounded at both ends, not constricted at septum; wall dark chestnut-brown, 
uniformly very thick, 5-7 », moderately and prominently conic-verrucose; pedicel colorless, 
up to twice length of spore, often obliquely placed. 
On ASCLEPIADACEAE: 
Marsdenia mexicana Decaisne, Morelos; Guatemala. 
TYPE LOCALITY: Cuernavaca, Mexico, on Marsdenia mexicana. 
DISTRIBUTION: Southern Mexico and Guatemala. 
Exsiccati: Barth. N. Am. Ured. 352. 
