MELASTOMACE^. VI. Graffenrieda. VII. Centkonia. VIII. Truncaria. IX. Rhynchanthera. 



^.al ; petals 5, obovate. T2 . S. Native of New Andalu- 

 'lear Caripe. Rhexia rotundifolia, Bonpl. rhex. t. 25. 

 Vrs rose-coloured. 



J- 



^Afid-leaved Graffenrieda. Shrub 3 to 6 feet. 



^ Anthers with an obtuse appendage each. Lobes of calyx 



CZoue-budded Truncaria. Shrub cl. 



Cult. For culture and propagation see Meriama^ p. 733. A 

 plant worthy of cultivation. 



IX. RHYNCHANTHE'RA (from puvxoe, rhynchos, a beak, 



ular. Fruit umbilicate at the apex. Perhaps a proper and av-5rypa, anthera^ an anther ; anthers terminated by a long 



} beak each). D. C. prod. 3. p. 106. — Rhexia species, Bonpl. 



• . exce'lsa (D. C. 1. c.) branchlets tetragonal ; peduncles, ^chrank et Mart mss. Ser. rnss.-Proboscidia, Rich herb. 

 Is, and under side of leaves clothed with velvety rufescent , \'''' ^\^l Deccindria, Monogynia. Tube of calyx ovate- 

 leaves on long petioles, oval, Z-nerved, crenulated, blis- globose ; lobes 5 linear or setaceous. Petals 5, obovate Sta- 

 \bove. glabrous ; thyrse panicled, terminal ; bracteas 2 "^^l^^ 1^' ^ of which bear ovate, long beaked anthefs havmg 

 ch flower. 1/ . S. Native of South America, in shady ^^^'^ connectives long and auncled at the base ; the other 5 are 



ar Loxa. Rhexia excelsa, Bonpl. rhex. t. 34. Osb^ckia 



castrated and smaller. Ovarium ovate-globose, glabrous. Capsule 



Sub-shrubs 



..a. Spreng. syst. 2. p. 312. Stems numerous from the 3, but usually 5-celled. Seeds angular or oblong.- 

 .me root, herbaceous, 6-10 feet high. The flower-bud or ala- ^"^ herbs, natives of South America. Branches terete or bluntly 

 bastrum almost like that of Conosteiia, but differs in being cleft tetragonal ha.ry or pilose. Leaves cordate or oblong, 5-9- 



° ° nerved. Peduncles axillary, cymose, usually disposed m a ter- 



minal thyrse. Flowers purple, not involved by bracteas when 



longitudinally. Flowers red ? 



Tall Graffenreida. PI. 6 to 10 feet. 



Cult. See Merianla for culture and propagation, p. 733. y^""g 



Elegant plants, which deserve to be cultivated in every collection 

 of stove plants. 



Leaves cordate. 



1 R. grandifl6ra (D. C. prod. S. p. 107.) branches terete. 



VII. CENTRO'NIA (from Kevrpov, hentron^ a spur ; anthers and are, as well as the petioles, clothed with glandular pili ; 

 furnished with a long spur each). D. Don, wern. mem. soc. 4. leaves on long petioles, cordate, somewhat denticulated, hairy, 

 p. 314. D. C. prod. 3. p. 106. 



LiN. SYST. Decdndria^ Monogynia Calyx oblong, clothed 



Petals 5. 



9-nerved; flowers tern at the tops of the branchlets; tube of 

 calyx subglobose, shorter than the teeth, which are setaceous. 

 Tj . S. Native of Cayenne, and near the Orinoco, in wet mea- 



with retrograde bristles ; limb coarctate, entire. 



Anthers terminating in a long beak, and furnished with a long dows. 



subulate acute process at the base. Neck of style elongated, Rhexia grandiflora, Bonpl. rhex. p. 26. t. 11. 



tubular, inclosing the ovarium. Stigma blunt. Capsule 5- tiana, Spreng. syst. 2. p. 311. 

 celled. — A tree, having its branchlets densely clothed with rusty hardly longer than the petals. 

 tomentum. Leaves ample, elliptic, acuminated, quite entire, 

 petiolate, coriaceous, feather-nerved and reticulately veined, 

 glabrous and shining above, but when young clothed with brown- 

 ish deciduous tomentum beneath. Panicle terminal, large, 

 brachiate. Flowers large, purple. 



1 C. LArRiF6LiA (D. Don, in wern. soc. mem. 4. p. 315.) 

 ^ . S. Native of Peru, in groves. Osbeckia Peruviana, Ruiz 

 et Pav. in herb. Lamb. 



Melastoma grandifl6ra, Aubl. guian. 1. p. 414. t. 160. 



^ *' '- '- Osbeckia Auble- 



Genitals 



Tube of calyx purple. 

 Five of the stamens are fertile, 



racemes 



Laurel-leaved Centronia. Tree. 



Cult. See Meriana^ p. 733. for culture and propagation, lobes, which are linear-setaceous. Tp . S. 



but the 5 sterile ones reduced to threads. Calyx hispid. Per- 

 haps the plant of Bonpland is the same as that of Aublet. 



Great-Jlowered Rhynchanthera. Shrub 3 to 5 feet. 



2 R. novemne'rvia (D. C. 1. c.) shrub oppositely branched ; 

 branches nearly terete, beset with glandular bristles ; leaves pe- 

 tiolate, cordate, ovate, somewhat acuminated, crenated, 9-nerved, 

 hardly pilose above, but villous beneath ; flowers solitary, in the 

 axils of the bracteas, almost sessile, disposed in something like 



tube of calyx hairy, globose, equal in length to the 



Native of Brazil, m 



An elegant shrub when in flower. 



marshes in woods. 



The 5 longest anthers 



VIII. TRTJNCA'RIA (from trunco^ to lop off; limb of calyx terete short connective each. Capsule nearly globose 



Flowers purple. 



have a flat long connective each, and the 5 shortest ones have a 



^ - S-celled, 



3-valved. 



Lin. syst. Decdndria^ Monogynia. Tube of calyx cylin- 

 drical, hardly turbinate ; limb truncate, nearly entire. Petals 5, 

 ovate. Stamens 10; anthers elongated, beaked, opening by 1 

 pore, without any auricles. Ovarium altogether free in the bot- 

 tom of the calyx, 1 0-sided, and somewhat cup-shaped at the apex. 

 Style filiform. Stigma hemispherical. Fruit unknown. — A 

 climbing Brazilian shrub. It differs from Medinilla in the qui- 

 nary number of its parts, and in the free ovarium ; from Micbnia 

 in the cylindrical calyx ; and from Meriania in the absence of 

 bracteas to the flowers. 



1 T. caryophyllx'a (D. C. 1. c.) branchlets bluntly tetra- 

 gonal ; petioles and peduncles nearly glabrous ; leaves oval, 

 somewhat cuneated at the base, and mucronately acuminated at 

 the apex, 5-nerved, quite entire, ciliated, rather pilose on both calyx often (glandular. 



Seeds ovate, reticulately dotted. 



Shrub 2 to 4 feet. 



iViW-nerterf-leaved Rhynchanthera. 



8 R. DicHOTOMA (D. C. 1. c.) shrubby ; branches somewhat 

 tetragonal ; petioles and calyxes rather hispid ; leaves petiolate, 

 cordate, ovate, acute, serrated, 7-9-nerved, puberulous on botn 

 surfaces ; peduncles axillary and terminal, panicled, dicnoto- 

 mous, leafy ; tube of calyx ovate ; lobes subulate-lanceolate ; 5 o 

 the anthers are acuminated by a beak, longer than the connective, 

 which is auricled at the base. Tj . S. Native of Brazil, m 

 marshes about Rio Janeiro ; and of St. Christopher 

 dich6toraa, Desv. in Lam. Diet. 4, p. 41. Rhexia ChristopW) 

 re&na, Schrank et Mart. mss. Petioles 9-10 lines long 

 pili on the upper side of the leaves are scattered and '^^8^!^^ 

 under side villous along the nerves and veins. The hairs oi 



Melast 



The 



surfaces; thyrse terminal, elongated, having its branchlets 3- 

 flowered, with some bristles under the flowers holding the place 

 of bracteas. l2. ^. S. Native of Brazil, in the province of 

 Para. Melastoma or Meriania truncata, Schrank et Mart. mss. 

 Flower-bud or alabastrum almost like that of the clove. Calyx 

 quite glabrous. 



Seeds oblong. 



Shrub 3 to 5 feet. 



nearly 



Dichotomous Rhynchanthera. 



4 R. coRDA^TA (D. C. I. c.) suffruticose, simple 5 ^^^"^ "^Je/ 

 terete, hispid from long spreading hairs ; petioles s"^^^' ,^^^"J)^ 

 hispid ; leaves cordate, ciliately-serrated, acute, 7-nervea, s ^^^ 

 on both surfaces ; thyrse panicled, elongated, terminal ; ra 

 calyxes, and peduncles beset with glandular hairs. 1^ 



S. Na- 



