‘the tube smooth within, the anthers shorter than their 
filaments, with very long caudiform tips, and the styles are 
united in a column 4-cleft at the top with short truncate 
stigmas. In A. macranthum (t. 7022), the very large flowers 
have the perianth-lobes lobulately undulate, its tube pre- 
sents an inflexed curtain in the throat, above which 
are thickened folds like those of A. maximum, and below 
it, around the organs of fecundation, the walls are can- 
cellated by square pits; the stamens are very short, the 
styles free with large capitate stigmas. In A. caudigerum 
(t. 7126) the perianth-lobes are shortly triangular, and 
narrowed into long flexuous tails, the surface of the tube 
within is quite even and hairy, the filaments long and 
anthers short, the styles united below, the stigmas short, 
simple and recurved. In A. geophilum (t. 7168) the 
mouth of the perianth is nearly closed, its tube even and 
setulose within, the stamens much as in A. maximum, and 
the very short styles united in pairs with linear stigmatic 
surfaces. Lastly, in A. Thunbergii (Heterotropis asaroides, 
t. 8746) the perianth and stamens are nearly of the 
structure of A. macranthum, but the style and stigmas 
more confluent, : 
Some of the above characters and others in the habits 
of the species have been utilized by Duchartre in his 
monograph of the genus (DOC. Prodr. vol. xvi. pt. I. 
p-. 422); but now that the genus is known to contain 
upwards of twenty species, of which he knew only ten, it 
is not surprising that his sections should require both 
modifications and additions. Owing, however, to the 
texture of the flowers which suffer much in drying, it is to 
cultivated specimens rather than to the Herbarium that 
recourse is to be had in elucidating the genus. 
A, maximum is a native of China, where it was dis- 
covered by the indefatigable botanist, A. Henry, Esq., 
F.L.S., in the gorge of the Yang-tse Kiang river, 
1000 miles from its mouth. That gentleman says of it :— 
‘Occurs in glens about the Ichang gorge, on sides of 
cliffs, always some distance up. It is the Ma-ti-hsiang 
(i.e. horse-hoof fragrance) of the Chinese, and the root is 
used in medicine.” 
Living plants were received in 1894 from Mr. Ford, 
