Clxxxii PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 
normally self -fertilising Crucifers. The subterranean pods are white and 
spindle-shaped, and a quarter of an inch in length. They contain one 
or two seeds, separated by a delicate white membranous false dissepiment. 
They are attached to slender pedicels, 1 inch long, which turn abruptly 
downwards from their point of insertion in the stem. These are doubtless 
the result of cleistogamous buds. 
Heliamphora nutans. — The flower consists of five or four sepals, no 
petals, many stamens, the pistil having a long style and truncated apex, 
not spreading into an umbrella-like expansion as in the allied genus 
Sarracenia. There is but one species, a native of Guiana. 
Begonia venosa. — This is remarkable on account o'f its fleshy leaves 
and large scarious stipules, both features being characteristic of hot and 
dry climates. 
Ceropegia dichotoma, with tubular flowers, the tips only of the corolla 
remaining coherent. C. stapeliaformis and C. elegans and G. Woodi are 
all remarkable fleshy climbers, the last bearing tubers and pendulous. It 
has been figured from the Cambridge plant in the Botanical Magazine of 
March 1900. 
Bonplandia geminiflora (Polemoniaceae) is remarkable for the corolla 
being two-lipped, the two upper petals cohering above the tube, and pro- 
vided with a white-lined base as a " guide " ; the three other petals, upon 
which the subdeclinate stamens rest, project forward. The long style, 
with three spreading stigmas, project a quarter of an inch beyond the 
anthers. It is a monotypic genus, of one species only, and a native of 
Mexico. 
Nepenthes Viellardi, a species of Pitcher Plant, with small pitchers, 
3 inches long, and remarkable for the white border round the incurved 
red margin. The lid is red, and the under side of the leaves russet but 
smooth. 
