210 
POTHOS CORIACEA. 
Coriaceous Pothos. 
TETRANDRIA MONOGYNIA._Nat. Ord. AROIDE^. 
Gen. Char — Spatha monophylla. Spadix cylindraceus, undique floribus 
tectus. Perianthium tetraphyllum. Bacca tetrasperma. 
Pothos coriacea; acaulis, foliis oblongo-lanceolatis undulatis coriaceis 
basi obliquis venosis, nervo marginali, petiolo apice nodoso, pedun- 
culo foliis dimidio breviore. 
Pothos coriacea, Graham, in Edinb. Phil. Journ. April 1826. 
" Roots strong, fleshy, round and branched. Stem none. Leaves petioled, 
lanceolate, undulate, coriaceous, dull green, about ^ feet long, suberect, 
set obliquely on the petiole, veined, having an obscure lateral rib or 
nerve near the edge of the leaf ; middle rib very strong, prominent and 
round both behind and before. Petioles rising from the centre of the 
crown of the root, where they are very turgid, 6-8 inches long, semi- 
cylindrical, about as thick as the fore finger, with a swollen joint at the 
base of the leaf; and here the cuticle generally becomes wrinkled trans- 
versely, cracked, and brown. Stipules broad at the base, clasping the 
bases of several petioles, pointed, green, persistent, and becoming torn, 
withered, and white. 
Peduncle erect, much shorter than the leaves. Spatha suberect, ovato- 
lanceolate, acuminate, pale green, rather shorter than the spadix. Spa- 
dix round, tapering, about 5 inches long, greenish- white, shortly after 
its evolution covered with globules of a transparent, colourless fluid, 
giving it in most lights a very beautiful silvery appearance. Anthers 
yellow ; ^filaments white. Germen white, spotted with rose-colour. 
" This species I have seen at Kew ; but I am not aware that it has any 
where been described. The specific name here given refers to the firm, 
dry, thick foliage." — Graham. 
The above description, together with the accompanying fi- 
gure, drawn by Dr Greville, were communicated to me by 
Dr Graham. The plant was brought by Captain Graham 
VOL. III. 
