72 



PORTULACE.E. I. TRIANTHEMA. 



11 CLAYTONIA. Sepals 2 (f. 19. a. f. 20. a.), permanent. 

 Petals 5, unguiculated (f. 19. b. f. 20. 6.) ; claws connate at the 

 base. Stamens 5 (f. 20. d.). Style one, trifid at the apex (f. 

 1 9. c. f. 20. c.) ; lobes stigmatose inside. Capsule 3-vaIved (f. 

 20. c.), 3-seeded. 



12 MO'NTIA. Calyx of 2, rarely of 3 sepals. Petals 5, 

 rather connate at the base, 3 of which are a little smaller than 

 the rest. Stamens usually 3 in front of the smaller petals, 

 making 9, very rarely 3-4. Capsule 3-valved, 3-seeded. 



13 LEPTRI'NA. Calyx 3-parted. Petals wanting. Stamens 3. 

 Styles 3, short, acute. Capsule 3-valved, 3-seeded. 



14 COLOBA'NTHUS. Calyx 4-5-parted. Petals wanting. Sta- 

 mens 4-6. Stigmas 4-5. Capsule 4-7-valved, many-seeded. 



15 GINGI'NSIA. Calyx 5-parted, permanent, petaloid on the 

 margins and in the inside. Petals wanting. Stamens 5. Ova- 

 rium girded by a 5-lobed fleshy scale. Capsule 3-valved, many- 

 seeded. 



16 AYLME'RIA. Calyx 2-parted, coloured. Petals 5. Sta- 

 mens 10, membranous, connected into a hypogynous tube, the 

 5 inner ones abortive. Style one, crowned by a depressed capi- 

 tate stigma. Capsule bladdery, membranous, valveless. Seeds 

 numerous in the bottom of the cell. 



17 HYDROPY'XIS. Calyx 5-parted, permanent. Corolla un- 

 equally 5-lobed. Stamens 4, 2 long and 2 short, inserted in the 

 corolla. Ovarium superior. Style simple, crowned by a 3-lobed, 

 capitate stigma. Capsule triangular, 1 -celled, many-seeded, 

 opening transversely. 



I. TRIA'NTHEMA (from rptie, trels, three, and cu/Sue, an- 

 thos, a flower ; flowers are usually disposed by threes). Sauv. 

 meth. fol. p. 127. Lin. gen. no. 537. B.C. prod. 3. p. 351. 

 Zaleya, Burm. fl. ind. p. 110. Rocama and Papularia, Forsk. 

 desc. 69. et 71. 



LIN. SYST. Pent-Decdndria, Monogynia. Sepals 5, perma- 

 nent, connected together at the base, rather coloured on the in- 

 side, and mucronated under the apex. Petals wanting. Sta- 

 mens 5-10, rarely more, distinct, inserted in the bottom of the 

 calyx ; anthers kidney-shaped. Ovarium ovate. Styles or 

 stigmas filiform, 1-2, rarely 3. Capsule opening transversely 

 below the middle ; the upper valve, which separates like a lid, 

 is hollow, and contains a seminiferous cell ; therefore both cells 

 are either simple, or of two divisions, one or few-seeded. More 

 or less fleshy herbs, which are sometimes sufFruticose at the base. 

 Leaves opposite, quite entire, petiolate. Petioles dilated into a 

 stipula-formed membrane on both sides. Flowers axillary, ses- 

 sile, usually by threes. 



SECT. I. ZALE' YA (meaning not explained by Burmann). Burm. 

 fl. ind. p. 110. D. C. prod. 3. p. 352. Stamens 10 or more. 



1 T. POLYA'NDRA (Blum, bijdr. p. 1137.) stems herbaceous, 

 procumbent ; branches terete ; leaves linear, obtuse ; flowers 

 pedunculate, solitary, polyandrous, trigynous. Tf.. S. Native 

 of Batavia, in bogs. 



Polyandrous Trianthema. PI. cr. 



2 T. GOVINDIA (Ham. ex Wall. cat. no. 6838.) stems sufFru- 

 ticose, trailing ; leaves opposite, elliptic, emarginate at the apex ; 

 those opposite each other of unequal size ; flowers axillary, ag- 

 gregate, sessile. Tj . S. Native of the East Indies, in Mungger. 

 Plant glaucous. The number of stamens and styles unknown. 



Govindia Trianthema. Shrub prostrate. 



3 T. DECA'NDRA (Lin. mant. p. 70.) stem herbaceous, gla- 



brous, diffuse, terete ; leaves elliptic, acute. O- F. Native of 

 the East Indies. Zaleya decandra, Burm. 1. c. t. 31. f. 3. Pe- 

 tioles furnished at the base on both sides with a broad mem- 

 brane. Flowers on short pedicels, disposed in fascicles in the 

 axils. Sepals mucronate at the apex. Stamens 10-12. Styles 2. 

 Decandrous Trianthema. Fl. July, Aug. Clt. 1762. PI. tr. 



4 T. TRI'QUETRA (Rottl. et Willd. in nov. act. nat. berol. 4. 

 p. 1 80.) stem herbaceous, dichotomous, branched ; branches 

 compressedly triquetrous ; leaves somewhat spatulate, petiolate ; 

 flowers axillary, sessile. Native on the coast of Coromandel. 

 Structure of flower unknown. 



Triquetrous Trianlhema. PI. diffuse. 



5 T. HUMIFU'SA (Thunb. fl. cap. p. 389.) stems frutescent, 

 trailing, terete ; leaves lanceolate, attenuated at both ends. fj . 

 G. Native of the Cape of Good Hope, in Konde Bokeveldt. 

 Stamens 10, alternate ones shorter. Thunberg in his prodro- 

 mus says the flowers are monogynous, but in his flora he says 

 they are digynous. 



Var. /3; stamens 10, one-half shorter than the calyx, fixed by 

 pairs to the base of the calycine segments. Native of the Cape 

 of Good Hope, at Hex River. 



Trailing Trianthema. Shrub tr. 



6 T. A'NCEPS (Thunb. fl. cap. p. 399.) stem frutescent, dif- 

 fuse, 2-edged ; leaves lanceolate, attenuated at both ends, acu- 

 minated. Tj . G. Native of the Cape of Good Hope. Stamens 

 10. Style 1, very short. 



Two-edged-stemmed Trianthema. Shrub diffuse. 



SECT. II. ROCA'MA (Rokama is the Arabic name of T. pen- 

 tdndra). Forsk. descript. p. 71. D. C. prod. S. p. 352. Sta- 

 mens 5. 



7 T. PENTA'NDRA (Lin. mant. p. 70.) stem rough from vel- 

 vety hairs ; leaves elliptic, obtuse, flowers crowded in the axils 

 of the leaves, y. . (ex Forsk.) ^. (ex Lin.) Native of Arabia. 

 Rocama digyna, Forsk. 1. c. Rocama Arabica, Gmel. syst. 1. 

 p. 455. Pluk. phyt. t. 120. f. 3. ex Lin. T. pentandra, 

 Gaertn. fruct. 2. p. 213. t. 128. f. 5. Lam. ill. t. 375. f. 2. Sta- 

 mens 5. Styles 2. Perhaps 2 species are here confused, the 

 stems being, according to Linnaeus, erect and shrubby, and 

 according to Forskal annual and prostrate. 



Var. ft, obcordata (D. C. prod. 3. p. 352.) leaves obovate, 

 bluntly emarginate at the apex. Native of the East Indies. T. 

 obeordata, Roxb. hort. beng. p. 34. 



Pentandrous Trianthema. Fl. July, Aug. Clt. 1820. PI. pr. 



8 T. MONOGYNA (Lin. mant. p. 69.) stem herbaceous, diffuse, 

 dichotomous, branched, glabrous ; leaves oval, obtuse, opposite, 

 one of them smaller than the other ; flowers axillary, sessile, 

 bibracteolate. O- S. Native of Jamaica, Curassoa, and Mexico. 

 D. C. pi. grass, t. 109. Lam. ill. t. 375. f. 1. T. portulacas- 

 trum, Sauv. meth. p. 127. Lin. spec. 635. T. procumbens, 

 Mill. Pluk. aim. t. 95. f. 4. Stamens usually 5, alternating 

 with the sepals, but sometimes 1 0. Styles 1 or 2. Lower cell 

 of capsule about 4-seeded : upper one 1 -seeded. 



Monogynous Trianthema. Fl. July, Aug. Clt. 1710. PI. pr. 



9 T. CRYSTA'LLINA (Vahl. symb. 1. p. 32.) stem shrubby, 

 diffuse, terete, glabrous, papulose ; leaves linear or lanceolate, 

 opposite, one of them smaller than the other ; flowers crowded, 

 axillary, fj . G. Native of Arabia and the East Indies. Pa- 

 pularia crystalline, Forsk. desc. p. 69. Stamens alternating with 

 the petals. Style 1. 



Icy Trianthema. Shrub diffuse. 



Cult. The seeds of the species of Trianthema require to be 

 sown on a hot-bed in spring ; and about the end of May they 

 may be planted out in the open border in a warm sheltered situ- 

 ation, where they will probably flower and seed. Some are said 



