1922] BAILEY—ANT-PLANTS 375 
during different stages of their ontogeny, but the former (text 
fig. 5A) retain their juvenile angularity, whereas the latter (text 
fig. 6D) become nearly cylindrical at maturity. The peduncles 
vary considerably in length, but are asperate in both sexes. The 
female inflorescences are characterized by having one or more 
perigones in the sutures between the short, stout, conferruminate 
B 
Fic. 5.—Cecropia angulata: A, cross-section of 6 ament, X2.5; B, surface view of 
portion of 4 ament, showing pentenguias - cased Spay cleft perigee, 
ro; C, é perigo hai 
ber, X22; D, ee stamen of pair; EZ, upper stamen a same pair; F, upper stamen of 
pair from another perigone; G, lower stamen of this pair; (D-G) X 
pedicels (text fig. 7C). The clavate, pentangular or hexangular, 
apically cleft male flowers are not jacketed by a dense mat of 
long, interlacing trichomes, but are provided with a collar of short, 
stiff hairs (text fig. 5). The perigonial chamber is confined to the 
upper half of the flower, and the caudate anthers are borne on short 
filaments which become extraordinarily broad and membranaceous 
at the time of dehiscence (text fig. 5). The filaments, connectives, 
and anthers vary considerably in size and shape (text fig. 5D-G); 
