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. 



11 B. riiTLLOMANiCATA. 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, subcordate, bristly denticulate, purple beneath; 

 flowers rose-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 Bowers. E. Ind. 

 1 t B. GRIFFITHII. Like No. 13, but densely downy all over, even the large whitish Us. 

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



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 spiues. Flowers soli- 

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

 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 OPCNTIA. 1 



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



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



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



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



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



y Stock depressed -globuhir to oblong. Flowers subterniinal, short-tubed. ECBINOCACTUS. 



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



y Stock globular to cylindrical, covered with tubercles. Flowers lateral MAMMILLAJTA. 



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

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

 ner obovate. Stig. 4 10. Berry sinoothish or prickly. J> 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. 1 4 

 Joints oblong or nearly cylindrical. Stigmas 46. Seeds 1 G Nos. 5, 6 



1 O. Flcus-Indlcua Haw. Stock branches stout, erect-spreading, pale-glaucous ; 



Ivs. subulate, with pungent bristles, no spines ; fr. bristly, obovoid, purple. Florida 1 

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



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



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

 rocks, Ac., Ct. to Fla. 1 2f, the joints 46'. Flowers 2^4' broad. Per,. 7 10. Jn. 



3 O. Uafiiiesquii 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 VV. 



4 O. Ittissoiii-ieiisis DC. Stock prostrate; leaves minute, the axil* bristly and 



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



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



spines strong, yellow, unequal ; stigmas 6 ; fruit small, (i-seeded. Waysides, Fla. Ju 



6 O. Pes-Corvi Leconte. Stk. prostrate ; joints compressed-cylindric, small (2'); spines 



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



7 O. BRAZ1LIKK616, Stock cylindrical, 6 lOf; branches short, bearing ovate joints,which 



are thin and somewhat leaf-like ; spines 1 3 together, sharp and strong. Brazil. 



2. EPIFHYLLUM TRUNCATUM. Stock consisting of short, flat, notched 

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

 Style longer than the stamens or 6 8 10 reflexed petals. From Brazil. 1 f. 



