752 



MELASTOMACE^. XXXI. Lasiandra. XXXII. Ch^togastra. 



44, Sims, bot. mag. t, 214. Pleroma granulosum, D, Don, 

 wern. soc. mem. 4. p. 293. Melastoma Fontanesianum, Spreng. 

 syst. Rhexia dasystaminea, Schrank, mss. Flowers large, of 

 a rose-purple colour. 



Far. /3, angmllor (D. C. 1. c.) leaves not half the breadth ; 

 flowers smaller. 



Desfontain 



Shrub 5 to 8 feet. 



style beset with glandular pili, from the base to the middle. 

 ^2 . S. Native of the island of St. Catharine, in the entrance to 

 the Rio Janeiro, where it was collected by Captain d'Urville. 

 Petals purple, ciliated, almost bearded at the apex. Knots of 

 branches thickly beset with spreading bristles. 



D'Urville^s Lasiandra. Shrub 5 to 6 feet. 



24 L. ADENOSTE^MON (D. C. l.c) brauchcs tetragonally winged, 



19 L. fissine'rvia (D. C. 1. c.) branches tetragonal, not and are as w^ell as the peduncles clothed with adpressed bristles; 



winged ; petioles, peduncles, and leaves beset with adpressed 

 bristles ; leaves petiolate, oblong, acute, 5-nerved or only 3- 



petioles hardly any ; leaves ovate, quite entire, mucronate, 5- 

 nerved, villous above and on the nerves beneath, but clothed 



velvety from dense stellate down ; flowers racemose ; peduncles 

 opposite, 1-3-flowered; calyx clothed with adpressed white 

 pubescence ; filaments hairy ; style glabrous. T2 . S. Native 



Hhexia fissinervia. 



M 



Mart 



mss. Like L. Fontanesianay but differs in the 

 stem being tetragonal, not winged, in the calyx being less villous, 

 and in the flowers being smaller. 



Cleft 



Shrub 5 to 10 feet. 



nerved, with the 2 lateral ones bifid, beset with adpressed bristles with stellate tomentum between the nerves on the under sur- 

 on the margins and on the nerves on the under surface, the rest face; thyrse panicled, terminal; calyx and bracteas clothed 



with adpressed villi ; lobes of calyx lanceolate ; filaments and 

 style pubescent and beset with glandular pili at the base ; the 5 

 alternate filaments bearing a few thick pedicellate glands. \ . S. 

 Native of Brazil, about Rio Janeiro in exposed fields. Me- 

 riania adenostemon, Schrank et Mart. mss. Habit of Z. 'pro- 

 teceformiSy but the stamens are almost that of Macairea. 



Gland-stamened Lasiandra. Shrub 5 to 6 feet. 



25 L. arge^ntea (D. C. prod. 3. p. 131.) branches tetragonal, 

 clothed with adpressed bristles; leaves sessile, ovate, 5-7-nerved, 

 quite entire, densely clothed with silky villi on both surfaces; 

 thyrse panicled, terminal, with the rachis very villous and com- 

 pressed ; calyx tubular ; filaments and style bearing a few pili. 

 ^ . S. Native of Brazil, about Rio Janeiro. Melastoma ar- 

 gentea, Desv. in Lam. diet, 4. p. 45. Rhexia holosericea, 

 Bonpl. rhex. t. 12. Ker. bot. reg. t. 323. Lodd. bot. cab. 

 t. 236. Delaun. herb. amat. t, 321. Spreng. syst. 2. p. 307. 

 exclusive of the synonyme. Pleroma holosericeum, D. Don, 

 mem. soc. wern. 4. p. 293. Melastoma clavata, Pers. ench. u 

 p. 476. Flowers purple. A very beautiful species, and very 

 distinct from the Melastoma holosericea of Lin. and Swartz. 



Silvery Lasiandra. Fl. July. Clt. 1816. Sh. 6 to 10 feet. 



Cult. All the species are elegant shrubs, bearing thyrsom 

 panicles of large purple flowers. They grow best in a nuv 

 ture of loam, peat, and sand ; and young cuttings root readi J 

 if planted in the same kind of soil, placed in heat, under a hana- 



20 L. stenoca'rpa (D. C. 1. c.) branches tetragonal, having 

 the angles rather winged, and are as well as the petioles and 

 peduncles clothed with adpressed stiff villi ; leaves on short 

 petioleS) oblong, acute, mucronate, 5-nerved, quite entire, beset 

 with adpressed bristles above, and silky villi beneath ; flowers 

 panicled; bran'ches of panicle tetragonal, opposite, 3-flowered ; 

 calyx clothed with adpressed villi ; filaments hairy ; style rather 

 pilose. Tj . S. Native of Brazil, in rocky places near Maraca, 

 in the province of Bahia. Rhexia Estrellensis, Raddi, mem. 

 p. 9. ? Rhexia stenocarpa, Schrank et Mart. mss. Allied to 

 Z. Fontanesmna, but differs in the flowers being smaller, and 

 especially in the down, which is very distinct. 



Narrow 'fruited Lasiandra. Shrub 5 to 8 feet. 



21 L. Langsdorfia^na (D. C. 1. c.) branches tetragonal, 

 having the angles winged, beset with bristles as well as the pe- 

 duncles ; petioles short, villous ; leaves oval, acute from a mu- 

 erone, 5-nerved, clothed with adpressed bristles above, and with 



adpressed villi on the nerves beneath, and soft stellate tomentum glass. 



fc . . . ,-, ,--., , 



calyx clothed with adpressed white villi, with an ovate tube, and 

 lanceolate, deciduous lobes; filaments and style beset with 

 bristles. Tj . S. Native of Brazil, in exposed fields in the 

 provinces of Rio Janeiro and St. Paul. Rhexia Langsdorfiana, 

 Bonpl. rhex. t. 51. Osbeckia Langsdorfiana, Spreng. syst. 2. 



XXXIL CHiETOGA'STRA 



TRA (from xa*^'?^ ^^«^''^' I^^^vt 

 and yaarnp, gaster, a belly ; in allusion to the tube of the caiy- 

 being beset with bristles or scales). D. C. prod. 3. p. 1»^ • ^^.^ 

 Lin. syst. Decdndria, Monogynia. Tube ^^/^y\ vate. 

 nate, pilose, or scaly ; lobes 5, permanent. Petals 5, 



p. 312. Allied to L. Fontanesiana, but differs in the leaves Stamens 10, with glabrous filaments and objong anthers; ant ^^ 

 being ovate at the base, and rather rufescent beneath. Thyrse opening by 1 pore at the apex ; having their connectives Ura ^ 

 panicle-formed._ Stamens beset with glandular pili. out, sometimes into a simple or bifid spur, and sometimes m o^- 



small, obtuse tubercles. Ovarium free, bristly at the ^Pi^'^ 

 often denticulated. Capsule 5 -celled. Seeds cochleatc-^nf ' 

 rarely herbs, natives of South America, for the most part c 



rf 



Shrub 5 to 6 feet 



. 22 L. PROTE.EFORMis (D. C. 1. c.) branclilcts acutely tetra- 

 gonal, and are as well as the peduncles beset with bristles ; 

 petioles hardly any, villous ; leaves ovate, mucronate, 5-nerved, 



petioles hardly any, villous ; leaves ovate, mucronate, 5-nerved, with strigose pili. Leaves 3-5-nerved, quite entire, or '^ 



densely clothed with adpressed silky villi on both surfaces, the serrulated. Flowers terminal, purple, or white. 1 "" 6 j^^ 

 down on the under surface stellate ; thyrse panicled, terminal, differs from Lasiandra in the stamens being glabrous, 

 m«nv-flnwprp.l . W.ot..« .r.A ..i,,,.. „.«„ ^:u..,„ . i.v..„ „f the inflorescence ; from Arthrostemma in t^%^"'"^'L"]t,fl in 



of the parts of the flower, not quaternary ; from us 



many-tiowered ; bracteas and calyxes very villous ; lobes of 



calyx lanceolate, acute ; petals a little ciliated, twice the length „. ^ ., „„. 



of the calycine lobes ; style and filaments beset with a few hairs, there be^ng no appendages between the calycine lobes. 



Native of Brazil, in woods, and in bushy exposed places 



: _r »/r: r^ t»i - • "^ «/ ^ . r^ \ , 



M 



et Mart. mss. 



r/ 



flowers not being above half the size, and in the nerves of the 

 leaves being clothed with yellowish villi. 



-fanned 



Shrub 5 to 6 feet. 



Sect. L Monoce'ntra (from /xovoc, monos, one; an^^^ ^^^ 

 hntron, a spur ; in reference to the anthers "^^''"|j q p^od. 

 nectives drawn out into a simple spur at the base;. • ^^ 5 

 3. p. 131. TiiKo ^f oalvv nhnvate or turbinate, ^^^.^ 



Tube of calyx obovate 

 lanceolate, rather dilated at the base. 



A„*ers having^" 



. S3 L. UKyiLLEA'NA (D. C. 1. c.) branches tetragonal, clothed connectives drawn out into a simple spur at the base. ^^^ ^^-^ 

 with soft villi ; leaves on short petioles, oval-oblong, mucronate, toothed at the apex.— Showy Peruvian shrubs, witn ^ p^^. 



5-nerved, quite entire, clothed with adpressed silky villi on both of Lasiandra. Branches terete. 



Flowers large, purp'e 



Per 



surfaces; thyrse panicled, crowded, terminal ; bracteas and baps a proper genus. • v. hort, simp^^ 



calyxes very villous ; lobes lanceolate, acute ; filaments and 1 C. speciosa (D. C. 1. c.) brandies clothed witn an 



