MELASTOMACEiE. XV. Bertolonia. XVI. Meisneria, XVIL Appendicularia. XVIIL Comolia, &c. 741 



corymbs pedunculate ;' limb of calyx bardly erose. 1/ . S. Geraes, in marshes on the mountains. ' Rhexia bilocularis, 

 Native of the neighbourhood of Rio Janeiro, especially on the 

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

 Rhexia nymphaeifolia, Kunth, in Bonpl. rhex. t. 53. Flowers 

 white. Leaves 4 inches in diameter. 



Water-lily-leaved Bertolonia. Pi. creeping. 



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



Schrank etMart. 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. PI. ^ to 1 foot. 



Cult. Sec the annual species oi Salpingay p. 740. for culture 



simple, creeping; leaves petiolate, cordate, ovate, 5-nerved, and propagation. The plants should be kept moist by placing 

 somewhat undulately crenated, smoothish ; flowers disposed in the pots in which they are grown in pans filled with water. 

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

 %. S. Native of Brazil. Triblemma nymphaeifolium, Mart. 

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

 being hardly an inch long. Flowers small and purple. 

 Orafe-leaved Bertolonia. . PI. creeping. 



Tribe II. 



RHEXIE'jE (plants agreeing with the genus Rhexia in the 

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



8 B. Leuzea'na (D. C. 1. c.) stems suffruticose, short, simple, by I pore at the apex. Ovarium free, neither scaly nor bristly at 

 tetragonal, ascending, rather creeping ; leaves petiolate, oval- the apex. Capsule dry. Seeds cochleate, with a basilar orbi- 

 oblong, acute, sharply denticulated, 5-nerved, smoothish ; co- cular hylum. — Species all natives of America, except one. 



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

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

 town of Rio Janeiro. Flowers lilac. Rhexia Leuze&na, 

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



De Leuze's Bertolonia. PI. 6 feet. 



4 B. macula^ta (D. C. 1. c.) stem rooting at the base ; 

 branches, petioles, peduncles, and calyxes hispid from long 



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 



bristles ; leaves on long petioles, cordate, ovate, quite entire, cells of the anthers into 2 bristles at the articulation. Capsule 



pilose on both surfaces and on the margins, 5-nerved ; pedun- 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. I. c). ©. S. Native of Cayenne. 

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



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

 %• S, Native of Brazil, in the province of Bahia on the 

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

 l^ta, 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 

 "^hich are smaller than the others. Calyx permanent, at length 

 '^hite from small bristles on the outside at the base. Capsule 

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



Spotted Bertolonia. PI. creeping. 



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

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



8, elevated. 



Thyme-leaved AppendicuhriR. PI. 1 to 1^ foot. 



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

 pagation, p. 740, 



m which they are grown should be kept in pans of water, espe- XVIIL COMO'LIA (dedicated to M.Jos. Comoli, author of 



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



are easily increased by dividing the plants, or by seeds 



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

 Meisner, author of a monograph on the difficult genus Po/y- 

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



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



^'Hich is auricled at the articulation, in the other 4 the connec- 

 ^'ye is hardly evident. Capsule 2-celled. Seeds small, ovate, 

 ^iquetrous. — Herbs hardly shrubby, probably annual. Stems 

 ^rect, terete, rather hairy. Leaves ovate, acute, sessile, 3- 

 '^crved, somewhat ciliately serrated. Flowers pedicellate, soli- 

 ^ry, alternate in the axils of the branches and of the leaves, 

 8nd truly cymose at the apex, small, purple. This genus differs 

 *rom Spennera in the seeds not being cochleate. 



t M. ARENA^RiA (D. C. prod. 3. p. 114.) almost herbaceous ; 

 *^emand branches almost terete, hispid; leaves hairy. 0.? F. 

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

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

 *Iart. mss^ Hairs on the stems, panicles, and calyxes glandular 

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

 ^^lated. Capsule subglobose. 



Sand Meisneria. PL 1 foot. 



2 M. PALUDosA (D. C. \. c.) almost herbaceous ; stem and 

 branches tetragonal, rather pilose ; leaves smoothish on both 

 •wtfaces. O, ? S. Native of Brazil, in the province of Mioaa 



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



1 C. BERBERiFoLiA {T).C. I. c). ^. S. Nativc 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 ComoWd^. Shrub 2 to 3 feet. 



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



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

 author of a Flora o£ the environs oi Friburg)* Mart. herb. D. 

 C. prod. 3. p. 115 



Lin. syst. Octo-Decdndria^ Monogy 

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

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

 by 1 pore : having their cunnectivei» long, but not appcndiculated. 



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

 American erect herbs. Roots fibrous. Leaves petiolate, 



/ • 



