Tas. 8475. 
AMORPHOPHALLUS corrvucarus. 
~ 
Siam. 
AromwEAE. Tribe PyTHONIEAE. 
AmorPHOPHALLUS, Blume; Benth. et Hook. f. Gen. Plant. vol. iii. p. 970. 
Amorphophallus corrugatus, N. £. Brown in Kew Bulletin, 1912, p. 269; 
affinis A. Kerrii, N. E. Brown, sed ovariis atropurpureis, stylis longioribus 
et appendice valde corrugata facile distinguitur. 
Herba tuberosa perennis. Tuber 4-5 cm. diametro, depresso-subglobosum. 
_ Folium solitarium; petiolus 45-60 cm. longus, sordide viridis, fusco- 
maculatns et punctatus; lamina radiato-tripartita, viridis; partitiones 
25 cm. longae, irregulariter pinnatisectae et furcatae, segmenta sessilia, 
decurrentia, 3-15 cm. longa, 2-6 cm. lata, elliptico-ovata vel elliptico- 
oblonga, subcuspidato-acuminata, basi subcuneato-angustata. Pedunculus 
25-55 cm. longus, ad 1 em. crassus, sordide viridis et albido-variegatus et 
fusco-punctatus. Spatha erecta, 7-15 cm. longa, 3-7 cm. lata, cucullata, 
apice leviter fornicata, obtusa, basi brevissime convoluta, marginibus 
leviter undulatis, glabra, extra viridis versus basin albido-variegata, 
marginibus purpureo-tinctis, intra albida, apice viridis, margiuvibus 
purpureis. Spadix spatha multo brevior, stipitata; stipes albus; pars 
feminea 1°5-8 cm. longa, ad 1°8 cm. crassa, cylindrica, fuseo—purpurea ; 
ovarium globosum, in stylum 2-3 mm. longum abrupte contractum, 
stigmate punctiformi; pars mascula 1-5-2 cm. longa, ad 1°4 cm. crassa, 
cylindrica, roseo-tincta vel carnea; appendix 1-5-3 em. longa, ad 2 em. 
crassa, irregulariter ovoidea, obtusa, profunde corrugata, sordide ochracea. 
—N. E. Brown. 
The Aroid genus Amorphophallus includes some seventy- 
five species, widely spread in tropical and subtropical forests 
in the Old World, of which about one-sixth have already 
been figured in this work. That which forms the subject 
of our illustration was discovered by Dr. A. F. G. Kerr in 
the evergreen forest on the Doi Sootep mountain, in the 
district of Chiengmai, Siam, at an altitude of 5000 ft. 
above sea-level. Herbarium material of the plant was sent 
by Dr. Kerr to Kew, while living tubers were forwarded 
by him to the Botanic Garden of Trinity College, Dublin. 
Here one of these tubers, grown under stove conditions, 
flowered in April 1912, and supplied the material from 
which our plate has been prepared. To the courtesy of 
Professor H. H. Dixon, by whom the flower had been sent, 
we are further indebted for the subsequent communication 
January, 1913, 
