48o 
J. C. ARTHUR 
septum; wall yellowish to pale golden-brown, 1-1.5 m thick, much 
thicker at apex, 4-7 /z, smooth; pedicel colorless, short, fragile. 
A species having the appearance of a leptoform, but with uredinia 
unmistakably associated with the telia. No trace of p)icnia or aecia 
could be found. It has paler and thinner- walled spores than the short- 
cycled P. Heliotropii K. & K., and larger teliospores than P. heliotrop- 
icola Speg. 
155. PucciNiA CoRDiAE (P. Henn.) Arth. (on Ehretiaceae). 
Cordia gerascanthus L. (C alliodora Cham.), Escuintla, Feb. 18, 
1916, O, III, ii2, III, 503 ; same, Feb. 19, I9i6,ii2, l\l,So8. 
At the time this species was described by the writer (Mycologia 
8: 17. 1 91 6), no collection answering to Hennings' description of 
Vredo Cordiae (Hedwigia 43: 163. 1904) had been seen. Number 
503 of Professor Holway's material bears all spore forms from pycnia to 
telia belonging to the species, thus completing our knowledge of the 
life cycle. The primary uredinia correspond exactly to Hennings' 
description, which brings his name into synonymy. Primary uredinia 
are also shown in Sydow's Uredineen 2og8. They differ from second- 
ary uredinia in having slightly larger urediniospores, in absence of 
paraphyses, and in causing marked hypertrophy, as well as in the 
presence of pycnia. The pycnia are amphigenous or caulicolous, in 
groups or scattered over more or less deformed terminal leaves, con- 
spicuous, and subepidermal. The secondary uredinia are scattered 
over the under side of the leaf, without causing hypertrophy. They 
have hyphoid, peripheral paraphyses, and, of course, are not accom- 
panied by pycnia. 
156. PucciNiA Urbaniana P. Henn. (on Verbenaceae). 
Cornutia grandifolia Schauer, Colomba, Dept. Quezaltenango, Feb. 
2, 1917, 822. 
A new host for this short-cycle and very common tropical rust. 
157. PucciNiA ELATIPES Arth. & Holw. (on Verbenaceae). 
Lippia myriocephala Schlecht. & Cham., San Lucas Toliman, Dept. 
Solola, Jan. 4, 191 7, O, ii, HI, 6^8 ] road between Quezaltenango 
and Colomba, Feb. 4, 1917, O, ii. III, 831. 
A long-cycle species having pycnia, uredinia, and telia, also found 
in Costa Rica, for which the Guatemalan collection 831 is the type. 
