132 ORDER CO. CACTACE/E. 



10 B. MANICATA. Leaves oblique-ovate, cordate, angular, toothed, with purple-fringed 

 scales on the petioles ; flowers flesh-colored, in open cymes, on long peduncles. Mex. 



1 1 B. PHYLLOMANICATA. Stem covered with leaf-like bulblets ; leaves broad-ovate, 

 cordate, doubly dentate ; peduncles longer than the leaves ; flowers roseate. Brazil. 



12 B. EVANSIANA. Leaves ovate, eubcordate, bristly denticulate, purple beneath; 

 flowers roso-colored, 1', in cymes on long stalks. Our oldest species, from China. 



1 3 B. Rex. Leaves ample, ovate, cordate, variegated with zones of dark-green, silvery- 

 gray, and purple, sinuate-crenate ; scape 1 2f, with large roseate flowers. E. Ind. 



1 4 B. GRIFFITHIX. Like No. 13, but densely downy all over, even the large whitish fla. 



1 5 B. XANTUINA. Lvs. like No. 13, but varied with metallic spots ; scape with yellow fls. 



ORDER LX. CACTACE^E. INDIAN FIGS. 



Plants with a green fleshy caudex or stock, angular or jointed, mostly 

 leafless, armed with numerous prickles and terrible spines. Flowers soli- 

 tary, mostly very showy. Sepals oo on the surface. Petals and stamens oo 

 on the top of the ovary or calyx tube. Fruit fleshy, 1-celled, with parie- 

 tal placentae. Style filiform, with stellate stigmas. Figs. 472, 487. 



* Calyx tube not produced above the ovary. Stock jointed, branching OPUNTIA. 1 



* Calyx tube produced above the ovary. a Joints flat, leaf-like, spineless. . .(x) 



Stocks 3 - OO -angled or grooved, spiny. . . (if) 



x Flowers rose-red, oblique, from the top of the short truncated joints EPIPHYLLUM. 2 



a- Flowers pink to red, regular, from the notches of the long joints . PHYLLOCACTUS. 3 



y Stock long-cylindrical, many-ridged. Flowers lateral, long-tubed CERECS. 4 



y Stock depres.sed-g-lobular to oblong. Flowers subterminal, short-tubed ECHI.NOCACTUS. 



y Stock globular to conical. Flowers terminal, small, woolly-tubed MKLOCACTUS. 5 



y Stock globular to cylindrical, covered with tubercles. Flowers lateral MAMMILLAR'A. 



1. OPUNTIA, Mill. INDIAN FIG. Sep. and pet. GO adnate to the 

 ovary, not produced into a tube above it, longer than the stamens, the in- 

 ner obovate. Stig. 4 10. Berry smoothish or prickly. > Brandies com- 

 posed of fleshy, mostly flattened joints. Lvs. small, deciduous, alternate, 

 with tufts of prickles in their axils. Flowers large, yellow. 



Joints obovate or broadly oval. Stigmas 810. Seeds many. Fr. eatable. ..Nos. 14 

 Joints oblong or nearly cylindrical. Stigmas 4 6. Seeds 1 (5 Nos. 5, 6 



1 O. Ficus-Indicus Haw. Stock branches stout, erect-spreading, pale-glaucous ; 

 Ivs. subulate, with pungent bristles, no spines ; fr. bristly, obovoid, purple. Florida ! 

 to San Diego! 3 20f. Joints If. Fruit pleasantly acid. Trop. Am. 



2> O. vulgaris Mill. Stock prostrate, pale-glaucous; Ivs. minute, scale-like, with CO 

 bristles and lew spines ; fr. nearly smooth, ovoid, eatable, crimson when ripe. Dry 

 rocks, &c., Ct. to Fla. 1 2f, the joints 4 (/. Flowers 2^4" broad. Per,. 710. Jn. 



3 O. Itafiiiesquii Eng. Stock prostrate, bright green : Ivs. spreading, subulate, longer 



(3 4"); spines 1-5 in each axil ; petals 10-12, often purplish at base. Ky. to 111., and W. 



4 O. Missouriensis DC. Stock prostrate; leaves minute, the axils bristly and 



with whorl of many spines ; fruit prickly, dry. Wis., along the rivers, and W. June. 



5 O. polyaiitlia Haw. Erect ; joints oblong, the upper bearing many liowers at top ; 



spines strong, yellow, unequal ; stigmas G ; fruit small, G-seeded. Waysides, Fla. Ju. 



6 O. JPes-Corvi Leconte. Stk. prostrate ; joints compressed-cylindric, small (20; spines 



in pairs, unequal ; pet. few, spatulate ; stig. 4 ; fr. small, prickly, 1-4-seeded. Ga., Fla. 



7 O. BRASILENSIS. Stock cylindrical, 6 lOf ; branches short, bearin-g ovate joints, which 



are thin and somewhat leaf-like ; spines 13 together, sharp and strong. Brazil. 



2. EPIPHYLLUM TKUNCATUM. Stock consisting of short, flat, notched 

 joints, truncate at top ; flowers at top of the joints, 23' long, conspicuously obliqne. 

 Style longer than the stamens or 6810 reflexed petals. From Brazil. 1 f. 



