746 



MELASTOMACEiE. XXI. Ernestia. XXII. Siphantiiera. XXIII. Rhexia. 



XXL ERNE'STIA (in honour of Ernest Meyer, author of ventricose at the base (f. 109. a.), but constricted at the neck 

 prmiitise Florae Essequeboensis Gottingen. 4to. 1818.) D. C. at the apex (f. 109. 6.); limb 4-cleft (f. 109. 6.), permanent. 



prod. 3. p. 121. . 



Lin. syst. Octdndna^ Monogynia. Calyx with a globose 

 tube, and 4 narrow acunminated lobes. Petals 4, obovate, cihated. 

 Anthers triquetrous, drawn out at the base into 2 long bristles 

 each. Capsule 4-celled. Seeds unknown. — Herb, with tlie 



Petals 4, obovate. Stamens 8 (f. 109. c). Anthers not drawn 

 out at the base. Capsule free in the bottom of the calyx, 4- 

 celled, with lunate pedicellate placentas. Seeds cochleate. — 

 Smooth North American herbs. Stems erect, quadrangular. 

 Leaves sessile, quite entire, linear-lanceolate, or ovate, 3-nerved. 



habit of Spenneraf but differs in the form of the antliers, which Flowers by threes, disposed in cymose corymbs, purple or yellow. 

 are anomalous in this genus, and in the capsule being 4-celled. ; 



1 E. tene'lla (D. C. 1. c.) ©. S. Native of New Granada, 

 on Mount Quindiu in shady places. Leaves cordate, oval, acu- 

 minated, setosely denticulated, 5-nerved. Flowers panicled, 

 octandrous. Calyx clothed with glandular pili ; tube ovate ; 

 lobes ovate, ending in long points. Petals obovate, white. 

 Genitals longer than the corolla. Style subclavate. 



Slender Ernestia. PL ^ to 1 foot. 



Cult, For culture and propagation see Spainera^ p. 743. 



XXIL SIPHANTHE'RA (from 0-t^wj/, siphon^ a tube, and ^^ ^ ^ng f 1 * Lam ill 



av^r}pQ^ anthera^ an anther; in reference to the anthers, which £83 f*l 



1 R. Maria'na (Lin. spec. 

 491.) stem terete, hairy ; leaves 

 on short petioles, lanceolate,acute 

 at both ends 3-nerved ; calyx 

 smoothish. %. H. Native of 

 North America, in sandy woods 

 from New Jersey to Carolina ; 

 also in Maryland, and probably 

 in Louisiana, if R. Ludovici^na, 

 Rafin. fl. lud. p. 92. be the same. 

 Lodd. hot. cab. t. 366. — Pluk. 



t. 



FIG. 109. 



terminate in a long tubular beak). Pohl. pi. bras. 1. p. 102. 

 D. C. prod. 8. p. 121. 



LiN. SYsT. Telrindria^ Monogynla. Calyx campanulate, 4- 

 toothed, girded by many bracteas ; bracteas permanent. Petals 

 4, .orbicular. Stamens 4, exserted ; anthers oblong, furnished 



with an obcordate ascending process at the base, and a tubular i ' <i»!^irfl" iTov^^'Tr 

 beak at the apex. Ovarmm adnate to the calyx at the base. 



Var. a^ purpurea; leaves nar- 

 row-lanceolate or oblong ; flow- 

 ers deep purple. Michx. fl. bor. 

 amer. 1. p. 221. 



Var.(i, rubella ; leaves oval-oblong ; flowers pale red. Michx. 



Style filiform. Capsule depressed, 2-celled, 2-valved, obcor- | r . 



Maryland Rhexia. Fl. June, Aug. Clt. 1759, Ph 



I to 



date at the apex. Seeds numerous, oblong-ovate or ovate, rather 

 convex on one side, reticulated. — Small elegant annual herbs, 

 clothed with glandular hairs. Leaves opposite, sessile, toothed, 

 feather-nerved. Flowers crowded into axillary and terminal 

 heads ; with rosq -coloured or white petals, and blue anthers. 



1 S. CORDA^TA (Pohl. pi. bras. 1. p. 183. t. 84.) leaves broad, 

 cordate, upper ones narrower, serrated, villous ; fascicles many- 

 flowered, on short peduncles; bracteas ovate, toothed, inner 



0. S. 



bogs 



ones narrow 



beak of anthers long and attenuated. 



Native of Brazil, in the province of Goyaz, in boggy meadows 



on the tops of the mountains. Rhexia veronicaefolia, Mart. 



herb. Stem reddish. Branches somewhat tetragonal. Petals 

 Tose-coloured. 



Cordage-leaved Siphanthera. PL ^ to 1 foot. 



2 S. te'nera (Pohl. pi. bras. 1. p. 104. t. 85. a.) leaves 

 roundish-ovate, unequally toothed ; fascicles of flowers on long 

 peduncles ; bracteas ovate,* acute, terminated by a long hair 

 each; beaks of anthers very short. 0. S. Native of Brazil, 

 on the tops of mountains in the province of Goyaz. Branches 

 tetragonal. Petals white, spotted with red at the base. 



Tender Siphanthera. PI. \ foot. 



8 S. su'btilis (Pohl. 1. c. p. 105. t. 85. f. b.) leaves oblong- 

 ovate, acutish, unequally denticulated ; fascicles of flowers on 

 long peduncles ; bracteas oblong, denticulated, terminated by a 

 long hair each ; beaks of anthers rather elongated. 0. S. Na- 

 tive of Brazil, in the province of Goyaz, on sandy parts of 

 raountains, particularly between Corimba and Rio St. Marcos. 

 Branches tetragonal. Corolla white. 



Subtile Siphanthera. PI, 4 foot. 



2 R. Viugi'nica (Lin. spec. p. 491.) stem tetragonal, smooth- 

 ish ; angles winged ; leaves sessile, oval-lanceolate, ciliately ser- 

 rated, 3-nerved, rather hispid, as well as the calyxes. /¥• H. 

 Native of North America, from New York to Carolina, m 

 and woods in humid places. Lam. ill. t. 283. f. 2. Sims, hot. 

 mag. t. 968. Flowers small, purple. , 



Var. /3, septemnervia (Walt. fl. car. p. 130.) leaves 5-7-nerved. 



1/. H. R. Virginica gigantea, Poir. diet. 6. p. 1. • r i. 



Virginian Rhexia. Fl. June, Aug. Clt. 1 759. Ph | f^oN 

 8 R. ciLiosA (Michx. fl- bor. amer. l.p. 221.) stem somewhat 

 quadrangular, smooth ; leaves on short petioles, oval, glaoro 

 beneath, but with a few hairs above and ciliated on the ^^^''g'/!^' 

 flowers growing by threes, sessile, involucrated. If* W. 

 tive of Lower Carolina, in marshes. Pursh, fl. amer. sep . ■ 

 t, 10. Svveet,fl. gard. 298.— Pluk. amalth. t. 425. f 4. ^^ Psuu- 

 g;en. amer. 1. p. 243. R. petiolata, Walt. car. 130.? Lea\e 

 small. Flowers large, reddish purple. Anthers short 



Calyx 



when in fruit rather globose at the base. . /. . 



Ci7;a/erf Rhexia. Fl. June, Aug. Clt. 1812. Ph I ^ojljiw^^^ 



. 4 R. seruula^ta (Nutt. gen. amer. 1. p. 243.) «^^!^ ^"^^^^^ 

 rangular, smooth ; leaves on short petioles, roundisn-o ^^^ 

 smooth on both surfaces, rather ciliated at the base, and wi ^^^^ 

 margins serrated ; flowers pedunculate, ciliated ; ^^IT^ . ^f 

 with glandular hairs; the lobes acute. %- H. ^^^^-^^, 

 Georgia and Florida, in open marshes. Very hke /i. 

 Flowers purple, subcorymhose. 



Serrulated Aesived Rhexia. Ph f foot. 



5 R. glabe'lla 



(Michx. fl. bor. amer. L p- ---^ ^^^]y 



Cult. An^ti;; spades i;;^^^^^ Their terete, smooth ; J^^^^^/^^^^ Tfl ^ 



culture and propagation are the same as that for Spinner a, ^^nticulated or entire (ex NuttO ^ S nV^^^^^^ "'^ 



p. 743. ^ beset with glandular hairs. %. H. JNatne oi v^ pjj,;vers 



Georgia, in sandy humid woods, Bonpl. rhex. t. 4*- 



vvTTT r>TTT-/vTA //. . ^ 1 . large, pale purple. Root tuberous. I3l. ex 



XXIII. RHE XI A (from pr)Uz, r^ejris, a rupture ; supposed Far./3; leaves obovate. R. Alif^nus, Walt. car. p. i^* 



to cure by its astringent qualities). R. Br. ex D. Don, mem. Pursh, fl.'bor. amer. 1. p. 258. 



60C. wern. 4. p. 297. Nutt. gen. amer. 1. p. 244.— Rhexia 

 species, Lin. Bonpl. and Seringe. 



LiN. sYST. Ocldndria, Monogyyita. Tube of calyx ovate and 



Smooth Rhexia. PI. 4 feet. 

 G R. 



STRl CTA 



StM»gl»ti 



(Pursh, fl. amer. sept. l.p. 258.} «t/"^^3: 

 on«. but bearded at the joints ; angles ^m.eu, 



tetragonal, glabrous, but bearded 



