510 akoidej:. 



sheathing, at length deciduous. Anthers AhiYOBt. Oiiflfy "1-celIed, l(-3)-0Tulate." Seeds 

 exalbuminous.— ^Stem arborescent ; leaves romlate at its summit, sagittate : vtiMi joined hy 

 arches near the margin : petiole long, margined below to the sheathing base. 



13. M. arborescens, Schott. Stem low, unarmed ; leaf-auricles longer than the mid- 

 rib, with their inner margins parallel at the base.' — Plum. Descr. t. 60, 51, g. — Arum, L. 

 Caladium, Vent. — Stem 5'-6' high {Pkim.) ; leaves 8"-10" diam. ; spathe " externally 

 green, white within and purplish at the base, about 6" long." — Hab. West Indies {Plum.), 

 in moist places ; [Guadeloupe!; Guiana]. 



14. M. aculeata, Crueg. Stem arboreous, usually prickly ; leaf-auricles little longer 

 than the midrib, toith their inner margins diverging. — Caladium, Miq. C. arborescens, 

 Meg.!—Ste,m 10'-25' high; leaves I'diam.; spathe 5"-4" long.— Hab. Trinidad (&.), 

 forming thickets in moist places, chiefly near the sea; [Guiana !]. 



6. PHILODBNDEON, Schott. 



Spadix free, at length involute by the sheathing spathe, ? below, S at the summit, hearing 

 sterile organs at the middle. Anthers ii^inet. Ovary "compound: cells several-ovulate : 

 ovules atropous." Seeds albuminous. — Stem scandent or erect ; leaf-veins numerous, pa- 

 rallel; spathe coloured, cymbiform above the sheathing base. 



* Leaves entire, 1-nened. 



15. P. lingnlatumj Schott I Scandent; leaves alternate, oblong-lanceolate, cuspi- 

 date, rounded at the base: stronger veins 4-8-jugal: petiole margined to the summit : sti- 

 pules uone ; spathe white. — SI. t. 27. /• 3. — Arum, L. (exclus. Syn. PI.) P. Swartzianum, 

 Schott.!'— Le&ves 51I-6I1 long, 2"-l" broad ; petiole li"-2", spathe 3" long.— Hab. Jamaica !, 

 Pd., March, Wullschl., onirees; [Panama!, Venezuela]. 



16. P. dispar, Schott. Scandent ; leaves alternate, broadly ovate-oblong, mucronate, 

 aubcordate at the base, about as long as the petiole ; stronger veins 8-12(-" 5 ")-jugal: pe- 

 tiole margined below the summit, with the margin gradually dilated towards the sheathing 

 base : stipules none ; spathe " yellowish." — SI. t. 27. /. 3. Plum. Ed. Burnt, t. 37. — P. 

 lingulatum, C. Kth. — Leaves 12"-6" long, 6"-4" broad ; spathe 6" long : peduncle short. 

 — Hab. Jamaica {Sl^ ; [Guadeloupe !]. 



17. P. hederaceum, Schott. Scandent ; leaves alternate, deeply cordate with a nar- 

 row sinus, pointed, stipulate: stronger veins 6-12-jugal: petiole terete; spathe "yellowish- 

 green."— i'fom. Bescr. t. 55, 51, d. Jacq. Amer. Pict. t. 230. Besc. PI. 3. t. 168.— 

 Arum, L. P. Jacquinii, Schott. — ^Leaves and spathe about 6" long. — Hab. Jamaica (P. Br., 

 Besc); [Cuba to Martinique ; Panama!, Venezuela, Gaiana]. 



** Leaves pinnafifid, \-nerved. 



18. P. lacerum, Schott! Scandent ; leaves alternate, large, pinnatifid to one-fourth 

 of the transverse diameter, deeply cordate : stronger veins 9-10-jugal, 4-3 lowest pairs re- 

 curved, naked at the sinus : aaricles approximate ; lobes ovate, blunt : petiole long; pedun- 

 cles fascicled, long; spathe "yellow" {Jacq.) — Plum. Bescr. i. 53, 51, b. Jacq. Schcenbr. 

 4. t. 468.— Arum, Jacq. Caladium. i.— Leaves 10"-20" long; 8"-16" broad ; spathe 3"-4" 

 long. — Hab. Jamaica!, Bist., Wullschl.; [Cuba! to Venezuek]. 



*** Leaves S-partite, %-nerved. 



19. P. tripartitum, Schott. Scandent; leaves %-parlite, snbtruncate at the base: 

 segments entire, middle segment elliptical-oblong, pointleted, with 4-6-jugal stronger veins, 

 lateral oblique with the stronger veins unilateral ; petiole long, naked ; spathe " white above, 

 greenish with yellow spots at the base" {Jacq.)-— Jacq. Schcenbr. 2. t. 190. — Arnm, Jacq. 

 Caladium, W. — Lea.-segm"ents 8"-10" long, 3''-2i" broad, shorter than the petiole ; spathe 

 4" long. — Hab. Jamaica!, 3f arc/*; [Venezuela]. 



7. SYNGONIUM, Schott. 

 Spadix oiPhilodendron: spathe convolute-sheathing at the base, persistent. Anthers 



