314 
dispositi. Aecidia minuta, cupuliformia, pseudoperidio albido 
margine crenulato cincta. Aecidiosporae globosae, hyalinae vel 
stramineae, tenuiter tunicatae, episporio minute denseque granu- 
loso, 20-23 ns metro. Uredosporae non inventae. Sori teleu- 
tosporifert ein immersi, minuti, sine pseudoperidio. Teleutos- 
porae ipeniilatse, hyalinae vel stramineae, laeves, ellipticae vel 
oblongae, medio leviter constrictae, tenuiter tunicatae, 1- 
septate, cellulis demum secedentibus, 30-35 x 
Tropica, Arrica. Uganda; on leaves of Dissotis incana and 
Dissotis sp., R. Dummer 2157, 2865. 
The aecidia described by Cooke as Aecidiwm Dissotidis occur 
on the same leaves with teleutosori, and on similar spots. There 
is no doubt that the two forms are connected. In the type 
material of ‘‘ Uredo Dissotidis,’’ however, ‘ily teleutospores and 
an occasional aecidiospore can now be found, hence Cooke’s 
This is the only species of 
Pucciniosira for which an Aecidium stage has been described. 
Cercospora cannabina, Wake}. 
Maculae rotundatae vel oblongae, interdum confluentes, pal- 
lescentes, 3-10 mm. diametro. Acervuli hypophylli, minutissimi, 
olivacei, dense aggregatae, pulverulenti. Conidiophora sim- 
a. Two Conidia. b. Conidiophores. x 850. 
plicia, vix fasciculata, septata, olivaceo-fuscidula, 70-85 x 4 p- 
Conidia curvula, apice rotundata, dilute olivacea, ad 10-septata, 
40-90 x 4p. 
feubciees: Arrica. Uganda; on leaves of Cannabis sativa, hk. 
Dummer 1320 (Dec. 1914). 
The Picea) oo are erumpent in very small tufts of usually 
only 4 to 6. Owing to the crowded habit, however, and the 
lear scetinrihiod and spores, the under-sutface of the leaf shows 
more or less continuous patches of olive tomentum n_ this 
0 ay the r.dganes resembles Cercospora Odontoglossi, Prill et 
