Amorphophallus. | CL. AROIDEH (BROWN). 145 
leaflets unequal, the terminal largest, entire, decurrent. Peduncle 
short or tall. Spathe variable in form; tube campanulate or funnel- 
shaped, rarely subcylindric ; limb short and frill-like, or produced and 
ovate, expanded, concave or hood-like. Spadix longer or shorter than 
the spathe; tlowering part not exceeding the tube of the spathe ; 
appendix subglobose, ovoid, cylindric, fusiform or tail-like, smooth, 
rugose, or rarely hairy. 
Species about 50, confined to the tropics of the Old World. 
I cannot separate Hydrosme asa genus from Amorphophallus as Engler has 
done, for in habit, form, and structure of the infloresence there is absolutely no 
distinction to be found. The only character that can be claimed to separate them 
depends entirely upon the union of the funicle with the body of the ovule ; if the 
funicle is adnate to the body of the ovule so as to form a raphe it constitutes an 
Hydrosme ; if it is not adnate to the body of the ovulethen it isan Amorphophallus, 
surely too slight and unimportant a difference to form a genus upon, especially where 
all other parts of the inflorescence are in such a variable and unstable condition 
among the various species as in Amorphophallus, which, as here understood, is a 
very natural and easily recognised genus. 
Spathe connate into a tube below, hooded above . ~ 1. A. Elion. 
Spathe convolute in the lower part. 
Appendix of spadix short and thick, subglobose ovoid, 
or fusiform-ovoid, more or less rugose; ovary 
with a distinct style. 
Spathe 34-6 in. long, obliquely campanulate, open 2. A. leonensis. 
Spathe 7-13 in. or more long, hooded in the upper 
part . : - ° : . . . 8. A. dracontioides. 
Appendix of spadix cylindric, fusiform, or tail-like. 
Style none, except in 10, A, Preussit ; 11, A. laxi- 
Slorus ; 19, A. maculatus, and 20, A. gallaensis, 
*Spadix about equalling or shorter than the spathe. 
Spathe lobed (abnormally ?) at the apex. . 4. A, Teuszit. 
Spathe not lobed at the apex. 
Margin of spathe undulated. 
Flowering part of the spadix about equalling 
or longer than the appendix ; spathe- 
tube longitudinally ribbed inside . 5. A, Schweinfurthii. 
Flowering part of the spadix shorter than 
the appendix. 
Spathe-tube about 14 in. in diam., smooth : 
inside ; spadix 33-5} in. long . 6. A. mossambicensis. 
Spathe-tube about 34 in. in diam., covered 
with short filiform processes insice ; 
spadix 6-63 in, long ° . 7, A. Goetzet. 
Margin of spathe not undulated. 
Flowering part of spadix as long as the 
appendix . ; 2 : : . 8, A. Barteri. 
Flowering part of spadix much shorter than 
the appendix. 
Spathe dark violet A : : . 9. A. gratus. 
Spathe yellowish-green, purple at the 
Oc ° ’ : : . 10. A. Preussit. 
**Spadix longer than the spathe. 
Anthers sparsely scattered... : : . 11. A. laxiflorus. 
VOL, VIII. L 
