BEGONIACE^. 303 



umbilicated top. " Cotyledon) foliaceous." — Shrubs or trees with developed leaves : areolse 

 s/piny ; flowers terminal, in racemiform cymes or solitary. 



17. P. aculeata, Mill. Stem armed with fascicled, straight spines : branches trailing ; 

 leaves oblong-elliptical : 2-1, short, recurved spines at the downy base of the petiole ; flowers 

 in a lux cyme, white ; berry leafy with narrow sepals. — Besc. Fl. 4. t. 294. — Cactus Peres- 

 kia, i. — About l&'high; leaves li''-l", petiolar spines l"'-3"' long ; petals oval. — Hab. 

 Jamaica (*/««/■.) ; Antigua 1, Wullschl. 



P. portnlacifolia. Haw., with solitary, purple flowers, and the berry devoid of exterior 

 sepals, is cultivated in Jamaica (Maef!). 



LXXXV. CEASSULACEiE. 



Stamens definite, usually perigynous. Carpels distinct, or connected at the base, usually 

 furnished with hypogynotis scales. Albumen thin, or none. — Leaves succulent, exstipulate. 



1*. BEYOPHYLLUM, Salisb. 



Calyx campauulate, inflated, shortly 4-fid. Corolla sympetalous, clavate above a broader, 

 prismatical base, shortly 4-fid. Stamens 8, inserted into the corolla-hase. Carpids 4. — ^A 

 succulent, suflrutescent herb; leaves opposite, impari-pinnate, or simple : \ea&ets 1-5, ovate, 

 crenate ; flowers reddish-yellow, in a terminal panicle. 



1*. B. calycinum, Salisb. — Bot. Mag. t. 1409. — Calyx IJ"-]" long, shortly exceeded < 

 by the corolla. — Has. Naturalized in Jamaica ), March ; Antigua I, Wullschl. ; S. Vincent !, '' 

 Guild. ; [an Asiatic weed, ranging now from Mexico ! to Guiana !]. 



LXXXVI. SAXIFEAGE^. 



Stamens usually definite and perigynous. Carpels usually 2, connected, mostly many- 

 ovulate : styles distinct, rarely combined. Pericarp capsular. Seeds minute ; embryo 

 small, usually enclosed within copious endosperm. — Leaves exstipulate, or if opposite, often 

 with interpetiolar stipules. 



1. WEINMANNIA, L. 



Calyx 4-B-partite. Petals 4-5. Stamens 8-10, inserted into the calyx-base outside of 

 the hypogynous disc. Ovary 2-celled : styles diverging. Capsule birostrate : seeds several, 

 or CO , hairy : embryo axile. — ^Woody plants ; leaves usually impari-pinnate with a winyeil 

 rhachis, opposite : intrapetiolar stipules deciduous; racemes with the small flowers usually 

 fascicled. 



1. W. pinnata, L. Branchlets hirsute with short down ; leaflets 3-7-jngal, elliptical- 

 oblong, bluutish, serrate above the base, hispid on the midrib beneath, or glabrescent : rha- -^ 

 chis-wings spathulate : stipules broadly ovate-roundish ; flowers fascicled-racemose ; stamens / 

 8, exserted ; capsule ovoid, twice as long as the styles : seeds several, ovoid, long-comose. — 

 Lam. III. t. 313./. 1.— W. glabra, L.fll. W. alpestris, Macf.—A tree; leaflets 4"'-8"' 

 long ; flowers white. — Hab: Jamaica !, Pd., common on the summits of the Blue Mountains ; 

 Dominica !, /(Kr. ; S. Vincent!, Guild.; [Cuba I, French islands I ; Mexico to Guiana!]. 



2. "W. hirta, Sw. Branchlets villous-hirsute ; leaflets 3-4-jugal, elliptical, bluntish, 

 serrate above the base, pilose-pubescent chiefly beneath : rhachis-wings rhomboid-obovate : 

 stipules reniform ; flowers fascicled-racemose ; stamens 8, exserted ; " capsule oblong, with 



'short styles." — A tree or shrub; leaflets 6"'-10"' long. — Hab. Jamaica!, Al., rare in the 

 forests near the summit of the Blue Mountains. 



LXXXVII. BEGONIACEiE. 



Flowers unisexual. Sepals coloured, distinct. Stamens indefinite, central. Ovary in- 

 ferior, 3 (-2-5) -celled : styles connected below, with papillose stigmas. Pericarp capsular. 



