166 CL, AROIDEZ (BROWN). | Caladium. 
axile.— Herbs with a tuberous rootstock. Leaves all radical, with long 
petioles, sagittate, cordate, or lanceolate, usually peltate, reticulately 
veined. Peduncle solitary, long. 
Species several, natives of Tropical America, the following has been introduced 
into Tropical Africa, and become naturalised. 
1. GC. bicolor, Vent. Descr. Pl. Nouv. Jard. Cels, 30. Tuber 
depressed-globose. Leaves few, erect; petiole 3-1 ft. long, terete, 
glabrous, glaucous towards the apex; blade 6-10 in. long, 4-7 in. 
broad, peltate, ovate-sagittate, acute, glabrous, crimson or whitish in 
the central part, glaucous beneath ; basal lobes deltoid, obtuse, with an 
open obtuse sinus between them. Peduncle 8-10 in. long, terete, 
glabrous. Spathe glabrous; tube 1-14 in. long, ovoid, green; limb 
13-21 in. long, about 1 in. broad, boat-shaped, convolute-cuspidate, 
white, deciduous. Spadix a little shorter than the spathe ; female part 
cylindric; male part fusiform, obtuse.—Kunth, Enum. iii. 42; Bot. 
Mag. t. 2543; Lodd. Bot. Cat. t. 255; Hook. Exot. Fl. i. t. 26; 
Schott, Syn. Aroid. 54, and Prod. Aroid. 172; Engl. in DC. Monogr. 
Phan. ii. 457; Henriques in Bolet. Soc. Brot. v. 208; Rendle in Cat. 
Afr. Pl. Welw. ii. 89. Arum bicolor, Ait. Hort. Kew. ed. i. iii. 316; 
Bot. Mag. t. 820; Jacq. Hort. Schenbr. ii. 30, t. 186. 
Lower Guinea. Island of St. Thomes: very common, Moller (ex Henriques), 
Welwitsch, 6769! Princes IJand: commen in all the cultivated ravines, Barter, 
1945 ! at the base cf Pico de Papagaio, 1600-2000 ft., Welwitsch, 222! and with- 
out precise locality, Mann, 1150! West Atrica, Grey ! 
Introduced. A native of Tropical America. 
10. TYPHONODORUM, Schott; Benth. et Hook. f. Gen. 
Fi. ini. 977. 
Spathe convolute below, constricted at the mouth of the tube; 
limb elongated, acuminate, concave. Spadix shorter than the spathe, 
free, monecious; female part short, cylindric, separated from the male 
part by a constricted interval covered with barren organs (pistillodes) ; 
fertile male part not very long, cylindric, passing upwards into a very 
long cylindric spike of staminodes. Perianth none. Ovary 1-celled; 
stigma subsessile. Ovule solitary, basal, erect, anatropous. Male 
flowers of 4-8 anthers united into a truncate angular body; anther- 
cells opening by short terminal slits. Barren organs, both pistillodes 
and staminodes, elongated in the direction of the axis, irregularly 
angular, truncate, crowded. Berries very large, containing 1 large nut- 
like seed—Large herbs several ft. in height, with the habit of 
Richardia. Leaves all radical, cordate, with long stout petioles. 
Peduncle long and stout. Spathe very long. 
A specimen, which was collected in the Island of Zanzibar by Stuhlmann, has been 
referred by Engler (Pfl. Ost-Afr. C. 132) to this genus, but is stated to be in too 
imperfect a condition to admit of its specific identification. .The only other known 
species (for 7’. madagascariense, Eng)., is the same as 7. lindleyanum, Schott) is @ 
native of the Mascarene Islands. 
