782 



MELASTOMACE^E. LXIII. DISSOCH^TA. 



LXIII. DISSOCH.&TA (from Ziaaos, dissos, double, and 

 Xairt], chaitc, a bristle ; in reference to the connectives of the 

 anthers being furnished with 2 bristles on their back, near the 

 base). Blume, in bot. zeit. 1831. no. 28. p. 492. 



LIN. SYST. Octundria, Monogynia. Tube of calyx oblong, 

 obscurely tetragonal, adhering to the ovarium ; limb drawn out 

 beyond the ovarium, for the most part obsoletely 4-toothed, 

 permanent. Petals 4. Stamens 4, but sometimes 8 ; when this 

 last is the case, the alternate ones are sterile. Anthers ob- 

 long-linear, opening by 1 pore, usually beaked and arched, 

 rarely blunt and straight, furnished each with a lamellate, 

 2-awned, rarely undivided connective on the back, near the 

 base. Style filiform, clavate. Stigma a pruinose dot. Berry 

 elliptic -globose, nearly dry, crowned by the calyx, 4-cellrd, 

 indt'liiscent. Seeds cuneated, angular. Sarmentose shrubs, 

 with the branches, peduncles, and under side of leaves clothed 

 with starry down, sometimes thickly and sometimes thinly, ac- 

 cording to the species. Leaves petiolate, elliptic-oblong, quite 

 entire, somewhat 5-nerved, glabrous above, for the most part of 

 a different colour beneath. Inflorescence panicled, terminal, or 

 axillary. Flowers pale red, blue, or white. Habit of the genus 

 Oxysporum . 



SECT. I. DISSOCILE V T;E (see genus for derivation). Blum, in 

 bot. zeit. 1831. no. 28. p. 493. Limb of calyx cup-shaped, 

 somewhat 4-toothed. Petals ovate-oblong, obtuse, or bluntish. 

 Anthers fixed by the base or by the back. Connectives bifid or 

 entire. Ovarium rather silky from stellate down at the apex. 



* Flowers tetrandrous. 



1 D. FA'LLAX (Blume, 1. c.) leaves 5-nerved, ovate-oblong, 

 acuminated, rather cordate, clothed with rusty, scurfy tomen- 

 tum beneath ; panicles terminal ; calyx nearly quite entire ; 

 anthers fixed beneath the middle, having their connectives un- 

 divided. Jj . S. Native of Sumatra and Java, in woods, and 

 among bushes. Melastoma fallaxj Jack, in Lin. trans. 11. p. 

 13. Melast. Reinwardtianum, Blume, bijdr. p. 1069. Malast. 

 diffusa, Reinwardt, ined. Flowers white. 



Fallacious Dissochaeta. Sh. sarmentose. 



2 D. INTERME'DIA (Blum. 1. c.) leaves 5-nerved, ovate-oblong, 

 acuminated, somewhat cordate at the base, clothed with pale 

 scurfy ochraceous tomentum beneath ; panicles terminal and 

 axillary, much branched ; calyx almost quite entire ; anthers 

 fixed by the base, having their connectives ending in 2 bristles. 

 17 . S. Native of Java, in woods, on the chains of mountains 

 called Pangaranghu and Gegerbinting. Flowers white ? Melas- 

 toma fallax, Blum, bijdr. p. 1068. 



J ar. ft ; leaves clothed with rusty tomentum beneath ; pani- 

 cles loose. T? . S. Native of Java, on the mountains of Mega- 

 mendong and Puluh-sarie. 



Intermediate Dissochaeta. Shrub sarmentose. 



3 D. MONTI'COLA (Blum. 1. c. p. 494.) leaves like those of the 

 preceding species ; panicles terminal, simple, hardly branched, 

 fj . S. Native of Java, on the calcareous mountains of Kuripan 



and Seribu. 



Mouptain-born Dissochaeta. Shrub sarmentose. 



4 D. LEPROSA (Blum. 1. c.) leaves 5-nerved, ovate-oblong, 

 acuminated, somewhat cordate at the base, clothed with scurfy 

 rusty tomentum beneath ; panicles loose, axillary, and terminal ; 

 calyx 4-toothed; connectives of anthers furnished with 2 

 bristles each. T? . S. Native of Java, on mounts Salak and 

 Cede. Melastoma leprbsum, Blum, bijdr. p. 1068. Flowers 

 larger than those of the preceding species. 



Leprous Dissochaeta. Shrub sarmentose. 



* Flowers octandrous, with the alternate anthers sterile. 



5 D. BRACTEA'TA (Blum. 1. c. p. 495.) leaves 5-nerved, ovate, 

 acuminated, cordate at the base, clothed with stellate down be- 

 neath ; panicles terminal ; bracteas petiolate, ovate, mem- 

 branous ; calyx almost quite entire ; connectives of anthers 

 furnished with 2 bristles each. T? . S. Native of Pulo Penang. 

 Mclastoma bracteatum, Jacq. in Lin. trans. 14. p. 9. Flowers 

 pale rose-coloured. 



Bracteate Dissochaeta. Shrub sarmentose. 



G D. VA'CILLANS (Blum. 1. c.) leaves 3-nerved, as well as with 



2 marginal nervules, ovate-oblong, acuminated, rounded at the 

 base, cordate, of the same colour on both surfaces, smoothish 

 above, but with a little scattered, scurfy down beneath ; pani- 

 cles terminal ; calyxes quite entire ; anthers straight, with their 

 connectives furnished with 2 bristles. Jj . S. Native of Java, 

 in woods on the mountains of Seribu, in the province of Buiten- 

 zorg. Flowers rose-coloured, middle-sized. 



Far. ft ; leaves narrower, and with longer taper points ; 

 flowers smaller and white. Tj . S. In woods, at the base of 

 Mount Salak. 



Vacillating-anthered Dissochasta. Shrub sarmentose. 



7 D. FU'SCA (Blum, in bot. zeit. 1831. no. 29. p. 497.) leaves 



3 nerved, as well as with 2 marginal nervules, long-acumin- 

 ated, rounded at the base, clothed with greenish brown, stel- 

 late, rather silky down beneath ; panicles terminal ; calyx nearly 

 quite entire ; anthers falcate, having their connectives furnished 

 with 2 bristles each. F? . S. Native of Java, in woods on moun- 

 tains of Salak and Cede. Melastoma fiiscum var. Blum, bijdr. 

 1074. var. y, D. C. prod. 3. p. 150. Flowers small, rose-coloured. 



Var. ft, ferrugmea (Blum. 1. c.) leaves clothed with pale 

 rusty stellate down beneath ; panicles axillary and terminal. 

 J? . S. Native of Java, in the province of Bamtam. 



Var. y, obtuso-acvmmata (Blum. 1. c.) leaves terminated by 

 a. blunt acumen, clothed with stellate down beneath. J? . S. 

 Native of Java, in the province of Buitenzorg, about Tjampia. 



Fuscous Dissochaeta. Shrub sarmentose. 



8 D. VELUTINA (Blum. 1. c.) leaves 3-nerved, as well as with 

 2 marginal nervules, elliptic-oblong, cuspidate, usually obliquely 

 rounded at the base, clothed with stellate and simple ochraceous 

 rather silky down beneath ; panicles axillary and terminal, rather 

 corymbose ; calyx almost quite entire ; connectives of anthers 

 furnished with 2 bristles each. Jj . S. Native of Java, in the 

 province of Bamtam. Panicle more contracted than in D. 

 vacillans. 



Velvety Dissochaeta. Shrub sarmentose. 



9 D. GRA'CILIS (Blum. 1. c. p. 498.) leaves 3-nerved, elliptic- 

 oblong, acuminated, rounded at the base, glabrous ; panicles 

 terminal, axillary, loose ; bracteas linear, caducous ; calyxes 

 obsoletely 4-toothed ; anthers straight, blunt at the apex, at- 

 tenuated at the base, having their connectives furnished with 2 

 bristles each. Tj . S. Native of Sumatra and of Java, in the 

 lowlands. Melastoma gracilis, Jack, in Lin. trans. 14. p. 14. 

 Melast. vacillans, var. S, pallens, Blum, bijdr. p. 1074. Melast. 

 alba, Reinw. ined. Flowers pale blue. 



Slender Dissochaeta. Shrub sarmentose. 



10 D. INAPPENDICULA'TA (Blum. 1. c. p. 499.) leaves 3- 

 nerved, besides 2 marginal nervules, ovate- oblong, long-acu- 

 minated, rounded at the base, brownish-green beneath, and 

 clothed with stellate scurfy pili ; panicles terminal ; calyx almost 

 quite entire : anthers fixed by the base, each furnished with a 

 triangular, inappendiculate connective, tj . S. Native of Java, 

 in the western part. Melastoma v&cillans, var. a, Blum, bijdr. 

 p. 1074. D. C. prod. 3. p. 150. Flowers rose-coloured, mid- 

 dle-sized. 



Var. ft, purpurascens (Blum. 1. c.) leaves densely beset with 



