734 



MELASTOMACE^. IV. Lavoisiera. 



sessile, ovate, 1-nerved, having the nerve-formed margins ciliated Mucoriferous Lavoisiera. Shrub 1 to 2 feet ? 



with stiff bristles ; flowers terminal, solitary, sessile ; tube of 

 calyx turbinate, bristly, 6-lobed ; lobes drawn out into an ob'o- 

 vate, scarious appendage each ; anthers dissimilar. 1^ . S. 

 Native of Brazil, among rocks. Rh^xia blepharocentra ciliata 



Mart 



§ 3. Carinatce (from carina^ a keel ; leaves keeled). JD. C. 

 prod. 3. p, 103. Leaves glabrous i not ciliated^ keeled, not Jlat. 



) 



Rhexia imbncata, Thunb. diss. pL chotomously branched ; branches terete ; leaves sessile, keeled, 



bras. 1. p. 10. t. 2. f. 2. Bilb. icon. 1817. ex flora, 1821. p. 

 331. Leaves shining, when dried yellowish. Petals obovate. 

 Stamens 12, shorter than the petals. Anthers ovate-oblong, 

 terminating in a short beak, with the connectives drawn out into 



densely imbricated, in 4 rows, bluntish, destitute of hairs and 



ciliae, quite entire, stiff, 1 -nerved. Tj 



Native of Brazil, 



t>lunt appendage at the base. 

 /w?6/'icafec?-leaved Lavoisiera. 



Shrub 1 to 2 feet. 



(D 



shrubby, nearly quite glabrous ; 



Mount Itambe. Rhexia tetrag6na, Mart, et 

 Schrank, mss. Flowers and fruit unknown. Like the rest the 

 flowers are seen to be sessile, terminal, and solitary. Inhabit 

 it agrees with L. imbricala. 



branches terete ; leaves sessile, imbricated in 4 rows, stiff*, 

 keeled, acute, hairy, the middle nerve roughish, and the nerve- 

 formed margins serrately ciliated ; flowers terminal, solitary, 

 sessile ; tube of calyx villous, turbinate, with the lobes ovate- 

 oblong, acute, and entire ; anthers dissimilar. Tj , S. Native 

 of Brazil, in the province of Minas Geraes, on the tops of a 

 chain of mountains called Morro de Villa Ricca, and elsewhere. 

 Rhexia c6mpta, Mart, et Schrank, mss. Very like Z. imbricata. 

 Neat Lavoisiera. Shrub 1 to 2 feet. 



(D. C. 1. c.) 



Tetragonal Lavoisiera. 



Shrub 1 to 2 feet. 



§ 4. Gentianoidece {gentlana^ gentian, and aJea, like; plants 

 resembling the Gentian in habit). Z>. C prod. 3. p. 103. 

 Leaves Jlat, glabrous. 



8 L. a'lba (D. C. 1. c.) shrubby, quite glabrous ; branches 

 and stem tetragonal ; leaves sessile, half stem-clasping, broadly 

 ovate, 9-nerved, quite entire; flowers axillary, solitary, on short 

 pedicels, when young involved in 2 bracteas ; tube of calyx 

 somewhat cylindrical, longer than the lobes, which are b-Gy 



slender, rather tetragonal ; leaves sessile, lanceolate, keeled, oblong, and acute ; anthers rather dissimilar. .T2 . S. Native 

 usually 1-nerved, imbricated in 4 rows, having the nerve-formed of Brazil, on the mountains between Villa Ricca and Tejuco, in 

 margins ciliated with stiff bristles ; flowers terminal, solitary, stony, exposed places. Rhexia alba, Mart, et Schrank, mss. 



sessile ; tube of calyx turbinate, 6-lobed ; lobes oblong, acute, 

 ciliately serrated ; anthers dissimilar. Tj . S. Native of Brazil. 



Flowers large, white. Petals b-Q, oval-oblong. Anthers 10- 

 12, ovate, terminating in a short and blunt beak, having the 



Very like Z. imbricala, but differs in the leaves being longer, connective in 5-6 of them drawn out into a long, somewhat 2- 

 less adprcssed, and more acute, in the petals being ciliated at . lobed appendage each at the articulation, and in the other 5-6 

 the apex, and in the different calyx. Stamens as in L. imbri- hardly produced at all. 



cata. Capsule 5-celled, permanent, dehiscing from the base as 



i/5 



D.C. colL 1. t. 2. 



Shewy Lavoisiera. Shrub 1 to 2 feet. 



5 L. vimina'lis (D. C. 1. c.) shrubby, glabrous ; branches 

 twiggy, tetragonal ; leaves sessile, adpressed, lanceolate, many- 

 nerved, striated, ciliated with bristles ; floral leaves setose be- 

 neath ; flowers terminal, few, aggregate, almost sessile ; calyx 

 hispid, turbinate, 5-toothed ; teeth long, acuminated ; anthers 

 dissimilar. \ . S. Native of Brazil, in alpine fields on Serra 

 de Sincora, at the height of 4500 feet. Rhexia viminalis. Mart, 

 et Schrank, mss. Leaves stiff*, imbricate. Petals large, purple. 

 Anthers 10, oblong, yellow, beaked, 5 of which are furnished 

 with an obtuse appendage at the base. Allied to L. imbricdta. 



Twiggy Lavoisiera. Shrub 1 to 2 feet. 



White-Lowered Lavoisiera. Shrub 1 to 2 feet. 

 9 L. GENTiANoiDES (D. C. 1. c. p. 104.) shrubby ; stem and 

 branches tetragonal, glabrous ; leaves sessile, half stem-clasp- 

 lanceolate, acuminated, quite entire, many-nerved : the 

 upper and young ones are setose and ciliated ; flowers terminal, 

 crowded, on short pedicels ; calyx bristly, with the tube cylin- 

 drical : and the lobes 5, apiculated by pili, about equal in length 



Native of Brazil, in the 



ingj 



to the tube ; anthers dissimilar. P2 • S. 



Rhexia gentia- 



province of Minas Geraes, in high rocky places 

 noides, Mart, et Schrank, mss. Habit almost of Genttana sa- 

 ponaria. Flowers white. Petals somewhat joined at the base. 

 Anthers 10, ovate, terminating in a short blunt beak, in 5 of 

 them the connective is long and tumid at the articulation, in the 

 other 5 short and hardly auricled. 



villi or soft hairs. 



Gentian-like Lavoisiera. Shrub 1 to 2 feet. 

 § 2. Mucorosce (from mucor, mouldiness ; appearance of 10 L. crassifolia (D. C. prod. 3. p. 104.) shrubby, dicho- 



bristles). Z). C. prod. 3. p. 103. Leaves flat y ciliated^ with tomously branched, quite glabrous; branches terete; leaves 



sessile, half stem-clasping, ovate, approximate, stiff", quite entire, 

 1-nerved; lateral veins obsolete; flowers terminal, sohtary, 

 6 L. mccori'fera (D. C. 1. c.) shrubby ; branches tetragonal, sessile ; tube of calyx broad, turbinate, much longer than the 

 puberulous ; leaves sessile, lanceolate, ovate at the base, acu- lobes, which are broad, mucronate, and very short ; anthers 

 minated, quite entire, setosely ciliated, 7-nerved, the middle dissimilar. T2 . S. Native of Brazil, on Serro Frio. Rhexia 

 nerve bristly beneath, the lateral ones hardly perspicuous ; crassifolia, Mart, et Schrank, mss. Petals 6, obovate, purple, 

 flowers terminal, solitary, sessile among the leaves ; tube of thickish. Anthers terminating in a very short beak, in some 



calyx subglobose, 5-7-lobed ; lobes linear, acuminated, ciliated, 

 deciduous ; anthers dissimilar. Tj . S. Native of Brazil, in 

 the province of Minas Geraes, in alpine fields at 2000 or 3000 

 feet above the level of the sea. Rhexia mucorifera. Mart 



the connective is very long and arched, in others short. 



Thick-leaved Lavoisiera. Shrub 2 to 4 feet. 



1 1 L. puNCTA^TA (D. C. 1. c.) shrubby, dichotomous, quite 

 glabrous ; branches tetragonal ; leaves sessile, half-stem-clasp- 



Schrank, mss. Setae for the most part pellucid, and terminated ing, lanceolate, quite entire, many-nerved, beset with brown dots 



by a globule each, and therefore mucoriferous. Petals obovate- beneath, 3 of the nerves are much elevated ; flowers termmal, 



oblong. Anthers 10-14, oval-oblong, terminating in an oblique solitary, sessile ; tube of calyx 16-ribbed, cylindrical, twice the 



porose beak, havmg the connective drawn out in some into a length of the lobes, which are 5, and lanceolate ; anthers 10-1«>, 



long appendage at the articulation, in others into a short ap- dissimilar. Tj . S. Native of Brazil, in high cold fields, 



pendage. Capsule 5-7- celled, opening from the base. Seeds Rhexia punctata. Mart, et Schrank, mss. Petals ample, obovate- 



an 



oblong, purple. Stamens much shorter than the petals, m 



1 



