163 
The species differs from U. Selariae-aureae, P. Henn. and U. 
Evansii, P. Henn., both of which occur on the same host, 
in the pale colour of the sori, and the larger, very coarsely 
warted spores. The latter spore-characters distinguish it also 
from U. heterospora, P. Henn., to which it is very closely related. 
Uromyces pustulatus, Wakef. 
Sori teleutosporiferi varii, in ramulis foliisque minuti, rotun- 
ti, 1-1-+5 
mm, diametro, in fructibus elongati, confluentes, 
pustulas ad 2°5 cm. longas efformantes, 
primo epidermide tecti, demum erum- 
pentes, castanei, pulverulenti. Teleuto- 
sporae ovatae, ellipsoideae, pyriformes, 
vel compressione angulatae, minutissime 
pe echinulatae, 22-35 x 1 9-20,  apice 
Teleutoaporss > 00. hyalino incrassato. Pedicelli hyalini, 
decidui, ad 30 x 3n. 
TropicaL Arrica. Kibos, Mombasa, on leaves, inflorescences, 
and fruits of Bauhinia fassoglensis, Kotschy, T. D. Maitland, 
Feb. 1921. 
Among the various species of Uromyces found on Bauhinia 
this one is noteworthy for occurring on leaves, peduncles and fruits. 
On the leaves and stems the pustules are of the usual small round 
type, but on the pods they become large and confluent, forming 
eventually very large raised pustules which give a “ scabby 
appearance to the fruit. 
The teleutospores resemble closely those of U. goyazensis, 
P. Henn., both in shape and in the fact that the markings on the 
epispore are very fine, and only clearly visible when the spore 
is examined dry or in lactic acid. The markings in U. pustulatus 
are however in the form of very fine warts, not reticulations such 
as are described for U. goyazensis. 5 
When the teleutospore is mounted in water the wall swells 
up and becomes more distinct. At the same time it loses its 
markings and becomes perfectly smooth, except at the thickened 
hyaline apex, where a little fine warting is visible. oF 
Many of the sori in the present gathering are parasitised by 
Tuberculina. 
dati, 
Mycosphaerella Tristaniae, Wakef. 
Maculae amphigenae, rotundatae, ad 1:2 cm. diametro, 
rubiginosae, linea fusca delimitatae. Perithecia immersa, sparsa, 
‘punctiformia, amphigena. Asci ovati vel pyriformes, 20-25 x 
121. Sporae subdistichae, oblongae, utrinque rotundatae, circa 
7-10 X 2-+5-8u. 
Freperatep Mazay Staves. Penang Hill, on living leaves 
of Tristania Griffithsii, Kurz, 7. F. Chipp, No. 4694, Aug. 1919. 
A2 
