734 



MELASTOMACEjE. IV. LAVOISIERA. 



sessile, ovate, I -nerved, having the nerve-formed margins ciliated 

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

 calyx turbinate, bristly, 6-lobed ; lobes drawn out into an obo- 

 vate, scarious appendage each ; anthers dissimilar. Ij . S. 

 Native of Brazil, among rocks. Rhexia blepharocentra ciliata 

 or floribunda, Mart. herb. Rhexia imbricata, Tliunb. diss. pi. 

 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 

 a blunt appendage at the base. 



Imbricated-\ea.ved Lavoisiera. Shrub 1 to 2 feet. 



3 L. COMPTA (D. C. 1. c.) shrubby, nearly quite glabrous ; 

 liranches 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 compta, Mart, et Schrank, mss. Very like L. imbricata. 



Neat Lavoisiera. Shrub 1 to 2 feet. 



4 L. INSIGNIS (D. C. 1. c.) shrubby, quite glabrous ; branches 

 slender, rather tetragonal ; leaves sessile, lanceolate, keeled, 

 usually 1 -nerved, imbricated in 4 rows, having the nerve-formed 

 margins ciliated with stiff bristles ; flowers terminal, solitary, 

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

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

 Very like L. imbricata, but differs in the leaves being longer, 

 less adpresscd, and more acute, in the petals being ciliated at 

 the apex, and in the different calyx. Stamens as in L. imbri- 

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

 in I., mucortfera. D. C. coll. 1. t. 2. 



Shervy 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. Tj . 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. imbricata. 



Twiggy Lavoisiera. Shrub 1 to 2 feet. 



2. Mucorosce (from mucor, mouldiness ; appearance of 

 bristles). D. C. prod. 3. p. 103. Leaves flat, ciliated, with 

 rilli or soft hairs. 



6 L. MUCORI'FERA (D. C. 1. c.) shrubby ; branches tetragonal, 

 puberulous ; leaves sessile, lanceolate, ovate at the base, acu- 

 minated, quite entire, setosely ciliated, 7-nerved, the middle 

 nerve bristly beneath, the lateral ones hardly perspicuous ; 

 flowers terminal, solitary, sessile among the leaves ; tube of 

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

 deciduous ; anthers dissimilar. Jj . 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, et 

 Schrank, mss. Setae for the most part pellucid, and terminated 

 by a globule each, and therefore mucoriferous. Petals obovate- 

 oblong. Anthers 10-14, oval-oblong, terminating in an oblique 

 porose beak, having the connective drawn out in some into a 

 long appendage at the articulation, in others into a short ap- 

 pendage. Capsule S-7-celled, opening from the base. Seeds 

 angular. 



Mucoriferous Lavoisiera. Shrub 1 to 2 feet ? 



3. Car'matce (from carina, a keel ; leaves keeled). D. C. 

 prod. 3. p. 103. Leaves glabrous, not ciliated, keeled, not flat. 



7 L. TETRAGO'NA (D. C. 1. c.) shrubby, glabrous, usually di- 

 chotomously branched ; branches terete ; leaves sessile, keeled, 

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

 cilise, quite entire, stiff, 1 -nerved. fj . S. Native of Brazil, 

 on the top of Mount Itambe. Rhexia tetragona, Mart, et 

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

 flowers are seen to be sessile, terminal, and solitary. In habit 

 it agrees with L. imbricata. 



Tetragonal Lavoisiera. Shrub 1 to 2 feet. 



4. Gentianoldeee(gentiana, gentian, and idea, like ; plants 

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

 Leaves flat, 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 5-0, 

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

 of Brazil, on the movmtains between Villa Ricca and Tejuco, in 

 stony, exposed places. Rhexia alba, Mart, et Schrank, mss. 

 Flowers large, white. Petals 5-6, oval-oblong. Anthers 10- 

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

 connective in 5-6 of them drawn out into a long, somewhat 2- 

 lobed appendage each at the articulation, and in the other 5-6 

 hardly produced ;it all. 



White-flowered 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- 

 ing, 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 

 to the tube ; anthers dissimilar. (7 . S. Native of Brazil, in the 

 province of Minas Geraes, in high rocky places. Rhexia gentia- 

 nokles, Mart, et Schrank, mss. Habit almost of Gentiana 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. 



Gentian-like Lavoisiera. Shrub 1 to 2 feet. 



10 L. CRASSIFOLIA (D. C. prod. 3. p. 104.) shrubby, dicho- 

 tomously branched, quite glabrous ; branches terete ; leaves 

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

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

 sessile ; tube of calyx broad, turbinate, much longer than the 

 lobes, which are broad, mucronate, and very short ; anthers 

 dissimilar. lj . S. Native of Brazil, on Serro Frio. Rhexia 

 crassifolia, Mart, et Schrank, mss. Petals 6, obovate, purple, 

 thickish. Anthers terminating in a very short beak, in some 

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



Thick-leaved Lavoisiera. Shrub 2 to 4 feet. 



11 L. PUNCTA'TA (D. C. 1. c.) shrubby, dichotomous, quite 

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

 ing, lanceolate, quite entire, many-nerved, beset with brown dots 

 beneath, 3 of the nerves are much elevated ; flowers terminal, 

 solitary, sessile; tube of calyx 16-ribbed, cylindrical, twice the 

 length of the lobes, which are 5, and lanceolate ; anthers 10-16, 

 dissimilar. Jj . S. Native of Brazil, in high cold fields. 

 Rhexia punctata, Mart, et Schrank, mss. Petals ample, obovate- 

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



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