MELASTOMACE.E. XV. BEHTOLONIA. XVI. MEISNERIA. XVII. AFPENDICULARIA. XVIII. COMOLIA, &c. 741 



corymbs pedunculate ; limb of calyx hardly erose. I/ . S. 

 Native of the neighbourhood of Rio Janeiro, especially on the 

 mountains called Serra d'Estrella, in humid places, in woods. 

 Rhexia nympliccifolia, Kuntli, in Bonpl. rhex. t. 53. Flowers 

 white. Leaves 1 inches in diameter. 



Waler-lily-leaved Bertolonia. PI. creeping. 



2 B. OVA'TA (D.C. prod. 3. p. 113.) stems very short, hairy, 

 simple, creeping ; leaves petiolate, cordate, ovate, 5-nerved, 

 somewhat undulately crenated, smoothish ; flowers disposed in 

 rather secund spikes ; limb of calyx broadly and bluntly 5-lobed. 

 7i. S. Native of Brazil. Triblemma nymphseifolium, Mart, 

 herb. This is very distinct from the first species, the leaves 

 being hardly an inch long. Flowers small and purple. 



Oi'ate-leaved Bertolonia. PL creeping. 



3 B. LEUZEA'NA (D. C. I.e.) stems suffruticose, short, simple, 

 tetragonal, ascending, rather creeping ; leaves petiolate, oval- 

 oblong, acute, sharply denticulated, 5-nerved, smoothish ; co- 

 rymbs terminal ; lirnb of 5 obtuse lobes, equal in length to the 

 tube; petals obliquely acuminated. If.. S. Native about the 

 town of Rio Janeiro. Flowers lilac. Rhexia Leuzeana, 

 Bonpl. rhex. p. 144. t. 54. and t. 55. 



De Leuze's Bertolonia. PL 6 feet. 



4 B. MACULA'TA (D. C. 1. c.) stem rooting at the base ; 

 branches, petioles, peduncles, and calyxes hispid from long 

 bristles ; leaves on long petioles, cordate, ovate, quite entire, 

 pilose on both surfaces and on the margins, 5-nerved ; pedun- 

 cles axillary, bearing at the apex a short raceme of 6-7 flowers, 

 y.. S. Native of Brazil, in the province of Bahia on the 

 mountains, in shady humid places of woods. Triblemma macu- 

 lata, Mart. herb. Racemes twisted at the apex. Lobes of calyx 

 5, ovate, and very blunt. Petals violaceous. Anthers truncate, 

 opening by 1 pore, attenuated at the base but not auricled, 5 of 

 which are smaller than the others. Calyx permanent, at length 

 white from small bristles on the outside at the base. Capsule 

 3-valved. Seeds small, trigonal, cuneated, scabrous. 



Spotted Bertolonia. PL creeping. 



Cult. Bertolonia is a genus of elegant little creeping plants ; 

 its species grow best in a mixture of peat and sand. The pots 

 in which they are grown should be kept in pans of water, espe- 

 cially in the summer, when the plants are in full vigour. They 

 are easily increased by dividing the plants, or by seeds. 



XVI. MEISNFRIA (dedicated by De Candolle to C. F. 

 Meisner, author of a monograph on the difficult genus Poly- 

 gonum, &c). D. C. prod. 3. p. 114. 



LIN. SYST. Octdndria, Monogynia. Tube of calyx globose; 

 lobes 4, lanceolate, acuminated. Anthers 8, ovate, ending in a 

 tubular beak each ; 4 of which have a very long connective each, 

 which is auricled at the articulation, in the other 4 the connec- 

 tive is hardly evident. Capsule 2-celled. Seeds small, ovate, 

 triquetrous. Herbs hardly shrubby, probably annual. Stems 

 erect, terete, rather hairy. Leaves ovate, acute, sessile, 3- 

 nerved, somewhat ciliately serrated. Flowers pedicellate, soli- 

 tary, alternate in the axils of the branches and of the leaves, 

 and truly cymose at the apex, small, purple. This genus differs 

 from Spennera in the seeds not being cochleate. 



1 M. AUENA'RIA (D. C. prod. 3. p. 114.) almost herbaceous ; 

 stem and branches almost terete, hispid; leaves hairy. O-- F. 

 Native of Brazil, in the province of Minas Geraes, at Serro Frio 

 in sandy sub-irrigated places. Rhexia arenaria, Schrank et 

 Mart. mss. Hairs on the stems, panicles, and calyxes glandular 

 at the apex, usually pale purple in a young state. Petals api- 

 culated. Capsule subglobose. 



Sand Meisneria. PL 1 foot. 



2 M. PALUDOSA (D. C. 1. c.) almost herbaceous ; stem and 

 branches tetragonal, rather pilose ; leaves smoothish on both 

 surfaces. O- 1 S. Native of Brazil, in the province of Minas 



Geraes, in marshes on the mountains. Rhexia bilocularis, 

 Schrank et Mart. mss. Very like the preceding species, but the 

 hairs are much fewer, shorter, and never red ; the stem is evi- 

 dently tetragonal, and the hairs are sometimes scattered and 

 sometimes disposed in rows along the branches. Petals purple. 



Marsh Meisneria. PL ^ to 1 foot. 



Cult. See the annual species of Salpinga, p. 740. for culture 

 and propagation. The plants should be kept moist by placing 

 the pots in which they are grown in pans filled with water. 



Tribe II. 



RHEXIE'^E (plants agreeing with the genus Rhexia in the 

 seeds being cochleate). D.C. prod. 3. p. 114. Anthers opening 

 by 1 pore at the apex. Ovarium free, neither scaly nor bristly at 

 the apex. Capsule dry. Seeds cochleate, with a basilar orbi- 

 cular hylum. Species all natives of America, except one. 



XVII. APPENDICULA'RIA (from appendix, an append- 

 age ; appendages to anthers). D. C. prod. 3. p. 114. Rhexia 

 sect. Appendicularia, Ser. mss. 



LIN. SYST. Octdndria, Monogynia. Tube of calyx ovate 

 and rather urceolate ; limb campanulate, broadly and bluntly 

 4-toothed. Petals 4, obovate. Stamens 8, equal : having the 

 connectives filiform, and drawn out both beneath and above the 

 cells of the anthers into 2 bristles at the articulation. Capsule 

 oblong, 3-celled, 3-valved ; central column at length free, and 

 bearing the seeds. Seeds cochleate. An annual, erect, glan- 

 dular herb, native of Guiana. Root fibrous. Leaves petiolate, 

 ovate, 3-5-nerved, ciliately serrulated. Cymes terminal, few- 

 flowered. Flowers small, white. This genus comes very near 

 Salpinga, but differs in the anthers. 



1 A. THYMIFOLIA (D. C. 1. c.). O- S. Native of Cayenne. 

 Rhexia thymifolia, Bonpl. rhex. p. 133. t. 50. Nerves of calyx 

 8, elevated. 



Thyme-leaved Appendicularia. PL 1 to 1^ foot. 



Cult. See annual species of Salpinga for culture and pro- 

 pagation, p. 740. 



XVIII. COMO'LIA (dedicated to M.Jos. Comoli, author of 

 a Flora of the environs of Come). D. C. prod. 3. p. 114. 



LIN. SYST. Octdndria, Monogynia. Tube of calyx campa- 

 nulately cylindrical ; lobes 4, linear. Petals 4, obovate. An- 

 thers oblong-linear, falcate, opening by 1 pore : having the con- 

 nectives short and biauriculated at the articulation. Ovarium 

 glabrous. Capsule ovate, 2-celled. Seeds cochleate, com- 

 pressed, furrowed on the back, and scabrous from tubercles. A 

 Brazilian shrub, with tetragonal branches. Leaves obovate, 

 somewhat cuneated, ciliately serrated, 3-nerved, beset with ad- 

 pressed pili. Flowers white, axillary, solitary, nearly sessile. 



1 C. BERBERIFOLIA (D. C.- 1. c.). ^ . S. Native of Brazil. 

 Rhexia berberifolia, H. B. et Bonpl. rhex. p. 110. t. 42. 

 Petals rather acuminated, longer than the genitals. Style fili- 

 form. Ovarium glabrous. Glands few along the lobes of the 

 calyx and at their origin. Calyx 8-nerved. Connectives of 

 anthers drawn out at both sides at base. 



Barberry-leaved Cornelia. Shrub 2 to 3 feet. 



Cult. For culture and propagation see Meriania, p. 733. 



XIX. SPE'NNERA (dedicated by Martius to M. Spenner, 

 author of a Flora of the environs of Friburg). Mart. herb. D. 

 C. prod. 3. p. 115. 



LIN. SYST. Octo-Decdndria, Monogynia. Tube of calyx 

 globose ; lobes 4-5, short. Flower-bud conical. Petals lan- 

 ceolate, acute. Stamens 8-10; anthers ovate, obtuse, opening 

 by 1 pore : having their connectives long, but not appendiculated. 

 Capsule free, 2, rarely 3-celled. Seeds cochleate, rough. 

 American erect herbs. Roots fibrous. Leaves petiolate, 5- 



