. 
312 BOTANICAL GAZETTE [APRIL 
29. PUCCINIA LEPTODERMA Diet. Hedwigia 38:251. 1899. 
While evidently related to the preceding species, the form differs markedly 
in the width of the teliospores, which are described as ellipsoid to oblong, 
28-35 by 45-60 p, constricted at septum, but not thickened at apex. No 
uredinia or urediniospores are described. This species has not been seen by 
the writer. It was reported on Piptocarpha sp. from Mand, Rio de Janeiro, 
Brazil, August 1896, EZ. Ule (2334). 
EXCLUDED SPECIES 
PuccrniA VERNONIAE Cke. Grevillea 10:26. 1882. 
This species has not been seen. It was based on several collections made 
in Natal by Wood. The teliospores are evidently immature, as stated by 
Cooke in the original description and reaffirmed by Sypow (Monographia 
Uredinearum 1:178. 1902), who has apparently examined an original specimen. 
In any case the name is untenable (cf. 13). It seems best, therefore, to dis- 
regard this species in the present account. 
HOST INDEX 
Elephantopus 
angustifolius 27 
Vernonia (continued) 
mollissima 14 
Vernonia (continued) 
Deppeana 22 
spicatus 26 
Piptocarpha 
oblonga 28 
sp. 28, 29 
Vernonia 
Alamani 15 
albicaulis au 
canescens 4 
cauloni 2 
crinita 1 
crotoneaster 1 
divaricata 1,7 
Drummondii 13 
Ervendbergii 13 
fasciculata 13 
flexuosa 11 
gigantea 13 
guadalupensis 13 
interior 
Karwenskiana 15 
Kuntzii 2 
leiocarpa 16, 18 
menthaefolia 12 
missourica 13 
mollis 6 
noveboracensis 13 
patens 21, 23 
phyllostachya 4 
platensis 24 
pluvialis 8 
pulchella 13 
unifiora 19 
Sp. §, 7) 0, 13) 15) 7 
PurRDUE UNIVERSITY AGRICULTURAL EXPERIMENT STATION 
La Fa 
AYETTE, IND 
