MELASTOMACE^. XXVIII. Marcetia. XXIX. Tkembleya. 



- ^ 1 



749 



ova], with revolute margins, nerveless, small, crowded, coria- nulate at the base and 5-lobed at the apex, the lobes endinff 



ceous ; flowers solitary at the tops of the branches ; calyx oblong, 

 beset with short, glandular hairs. ^ . S. Native of Brazil, in 

 the province of Minas Geraes, at the height of 5000 feet. 

 D.C. coll. mem. 1. t. 5. Rhexia sertularia, Schrank et Mart. 

 mss. Stamens exserted. 



in setaceous points, hardly shorter than the tube ; anthers dis- 

 similar. ^ . S. Native of Brazil, in the province of St. Paul, 

 in fields. Rhexia phlogifbrmis, Mart, et Schrank, mss. Petals 

 oval-oblong, purple. Anthers 10, ovate, with short blunt beaks ; 



Petals oval, white in a dried state. the 5 longer ones having their connectives drawn out into abroad 



Very elegant and very distinct from the other species. 



Sertularia-Uke Marcetia. Shrub 1 foot. 



CulL The species of Marcetia are elegant little shrubs, but- 

 probably of difficult cultivation. Should any of them be ever 

 introduced to the gardens, we would recommend their being 

 grown in a mixture of loam, peat, and sand, draining the pots well 

 witiv sherds, and placing them on the shelves in a stove. Young 

 cuttings will perhaps root in sand under a bell-glass, in heat. 



XXIX.^ TREMBLFYA (dedicated to Abraham Trembley, 



who by his observations on fresh water polypes, has contributed 



to determine the limits of the vegetable kingdom). D. C. prod. 

 3. p. 125. 



Lin. syst. Decdndriay Monogynia. Tube of calyx ovate, 

 constricted at the apex ; lobes 5, rather dilated from the base, 



obcordate appendage each, and tliose of the 5 shorter ones drawn 

 out into a small narrow appendage each. Capsule ovate, 5 ?- 



celled. 



Phlox'leaved Trembleya. Shrub 1 to 2 feet. 



3 T. agre'stis (D. C. I.e.) shrubby; branches bluntly tetra- 

 gonal; leaves elh'ptic-oblong, cuneated at the base, rather 

 acutish, quite entire, 3-nerved, pruinose on both surfaces as 

 w^ell as the branchlets ; upper ones pilose as well as the 

 calyxes; flowers solitary, terminal; lobes of calyx 5, oblong, 

 a little longer than the tube ; petals obovate, cuneated. Jj . S. 

 Native of Brazil, in the province of Minas Geraes, in elevated 

 stony fields. Rhexia agrestis, Mart, and Schrank, mss. Leaves 

 7-9 fines long and 3 lines broad. Flowers small. Anthers 

 oval-oblong, ending in very short beaks, but having their con- 

 nectives drawn out into a long, club-shaped process each at the 

 awned, or oblong/ Petals 5, oval. Stamens 10, 5 of which articulation; inner anthers furnished with shorter connectives. 



bear ovate-oblong anthers, with short blunt beaks ; having their The rest unknown. 



/"ieW Trembleya. Shrub 1 to 2 feet. 



4 T. heterosteWn (D. C. 1. c.) shrubby ; branches bluntly 

 tetragonal, when young clothed with velvety villi ; leaves petio- 

 late, lanceolate, cuneated at the base, obtuse at the apex, quite 

 entire, 3-nerved, clothed with velvety tomentum beneath, 

 smoothish above ; cymes 5-7-flowered, axillary, 3-times shorter 

 than the leaves ; calyx turbinately globose, with 5 short teeth ; 

 anthers 10, dissimilar, ^. S. Native of Brazil, In the pro- 

 vince of Minas Geraes, near subalpine fountains. Rhexia he- 

 terostemon, Mart, et Schrank, rass. Leaves 2 inches long, and 

 5 lines broad. Petals oblong, white. Anthers ovate, short, 

 ending in short beaks, 5 of which are spurless, and the other 5 

 having their connectives drawn out at the base into an obcor- 

 date appendage each, which is about equal in length to the 

 anther. 



Variahle-stamened Trembleya. Shrub. 



5 T. TRiFLORA (D. C. 1. c.) shrubby ; branches tetragonal, 

 glabrous ; leaves petiolate, oblong-lanceolate, quite entire, 3- 



connectives drawn out into an obcordate or spatulate simple 

 Iigula each ; the 5 alternate ones having the ligula hardly evident. 

 Stigma dot-formed. Capsule ovate, 5-celled, glabrous. Seeds 

 cochleate? "^" 



Shrubs, native of Brazil. Leaves sessile or petiolate, 

 oblong or linear, quite entire, 1 -3-nerved. 

 or terminal, I -3- flowered. 



Pedicels axillary 



._. This genus agrees with Rhexia in 

 uie urceolate calyx, but differs in the corolla being pentapetalous. 

 Ihe habits of the species are heterogeneous, but the characters 

 are not so. The genus is therefore divided into 3 sections. 



Sect. I, Jacobia (dedicated to James Andr. Trembley, who 

 ^rote a thesis on vegetation, which has been falsely attributed 

 Jo Calandrini, a Swiss botanist). D. C. prod. 3. p. 125. 

 ^%x turbinate, hardly constricted at the apex ; lobes subulate, 

 i^etals oval, mucronate. Connectives of anthers drawn out into 

 a short appendage each. Flower solitary, yellow. This section 

 almost agrees with the genus Marcetia^ but differs in the petals 



being yellow. Perhaps a proper genus. Seeds unknown. _ _ i /* 



^ 1 T. RosMARiNoiDEs (D. C. prod. 3. p. 125.) shrubby, much nerved, glabrous above, but white beneath from very mmute 

 branched, glabrous ; branches tetragonal ; leaves on short pe- down ; peduncles axillary, 3-flowered, angular ; calyx turbinate, 

 fioIes,linear,quiteentire,l-nerved,besides2marg;nalveins,which glabrous, with 5 triangular short lobes; anthers dissimilar. 

 -~ ' ' ' ^ . S. Native ox Brazil, m the province of Minas Geraes, m 



woods near Villa Ricca. Rhexia triflbra, Mart, et Schrank, 



^rejoined with the reticulating veins, clothed with yellowish down 



beneath ; flowers axillary, solitary, pedicellate, and at the tops 



?i^ the branches ; tube of calyx ovate, somewhat costate, equal 



^^ length to the lobes, which are subulate, and B-G in number ; 



^thers dissimilar. Tj , S. Native of Brazil, in the province 



^f Minas Geraes, on the tops of mountains, at the elevation of 



^000 feet. Rhexia rosmarinoHes, Schrank et Mart. mss. 



^ etals obovate, yellow. Anthers ovate, with short blunt beaks ; 



"*e alternate ones furnished with a longer auricled connective 

 each. • 



Rosemary-like Trembleya. Shrub 1 foot. 



F 



Sect. II. Abraha'mia (in honour of Abraham Trembley, 

 5^^ genus). D. G. prod. S. p. 126. Calyx urceolate; lobes 

 **Jbulate or linear. Petals not gradually mucronated but api- 

 *^^lated. Connectives of anthers drawn out into a broad append- 

 age each. Flowers purplish, pedicellate. 



* T. PHLOGiFORMis (D. C. 1. c.) plant suffruticose, oppositely 

 "'■anched ; branches somewhat tetragonal, beset with glandular 

 "f^l^s ; leaves sessile, elliptic-oblong, attenuated at both ends, 

 J^Iiately serrated, 3-nerved, hispid on both surfaces ; pedicels 

 1-flowered, axillary, and at the tops of the branches ; calyx 

 rather hispid, with an urceolate tube, and a limb which is campa- 



mss. Petals obovate, oblong, 3-4 lines long, not ciliated. An- 

 thers 10, ovate, ending in short beaks, 5 of which have their 

 connectives drawn out into a yellow retuse appendage each. 

 Three-flowered Trembleya. Shrub 2 feet. 



Sect. IH. Erioleu^ca (from ipiov^ eriortj wool, and Xevkoq^ 

 leucos, white ; plant clothed with white tomentum in every part). 

 D. C. prod. 3. p. 126. Calyx hardly constricted at the apex, 

 woolly on the outside ; lobes oblong. Petals obtuse. Connec- 

 tives of the longer anthers drawn out each into a broad appen- 

 dage. Flowers axillary, sessile. Seeds unknown. Perhaps a 



proper genus. 



6 T. LYCHNiTis (D. C. 1. c.) shrubby, clothed in every part with 



white woolly tomentum, except the petals, genitals, and the upper 

 surface of the adult leaves ; branches terete ; leaves almost ses- 

 sile, ovate, or somewhat oblong, 3-nerved, quite entire; flowers 

 axillary, sessile, somewhat verticillate ; tube of calyx turbinate, 

 equal in length to the lobes, which are 5, oblong, and glabrous 

 inside; anthers dissimilar. Tj . S. Native of Brazil, in the 

 province of Minas Geraes, in exposed stony places on the sides 

 of mountains. Rhexia lychnitis, Schrank et Mart. mss. Me* 





