708 



LYTHRARIEiE, III. Suffrexia, IV. Ameletia. V. Peplis. VI. Ammannia. 



Apetalous Cryptotheca. Shrub 1 foot. 



Cult. These plants will do well in a mixture of loam, peat, 

 and sand, and cuttings will root in sand under a bell-glass. The 

 pots in which the plants are grown should be always kept in 

 pans of water. 



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III. SUFFRE^NIA (in honour of De Suffren, a French bo^ 

 tanist, author of Principes de Botanique, suivis d'un catalogue 

 des plantes de Frioul et de Carnia, 1 vol. S\o. Venice, 1802). 

 Bell. act. taur. 7. t. 1. f. 1. D. C. prod. 3. p. 76. 



1 P. Po'rtula (Lin. spec. 474.) leaves opposite, obovate, 

 stalked; petals hardly visible; flowers axillary, solitary. 0. 

 B. H. Native of Europe, in watery places, on a sandy, gra- 

 velly, or heathy soil, frequent ; plentiful in some parts of 

 England. Schkuhr, handb. t. 99. Fl. dan. t. 64. Curt. lond. 

 t. 27. Smith, engl. bot. t. 1211. Portula diffusa, Moench. 

 Calyx reddish. Petals white, very minute, or w^anting. 



Common Water Purslane. Fl. June, Sept. Brit. Pl. cr. 



2 P. bifl6ra (Saltzm. pl. exsic. 1825.) leaves opposite or 

 alternate, obovate, cuneated at the base, on short petioles ; 



Lin. syst. Decdndria, Monogynia. Calyx tubularly-cam- flowers twin, axillary. O. B. H. Native in humid places 



about Tangiers. Flowers rather larger than those of P. portula* 

 Two-Jlorvered Water Purslane. Pl. creeping. 

 3 P. alternifolia (Bieb. suppl. 277.) leaves alternate, linear, 

 oblong, 2-valved, when young 2-celled, but in the adult state somewhat spatulate. ©. B. H. Native of Caucasus, about th^ 



panulate ; lobes 4, erect, ovate, acute ; teeth 4, small at the 

 sinuses. Petals wanting. Stamens 2, inclosed, inserted in the 

 tube of the calyx. Style filiform ; stigma capitate. Capsule 



only 1 -celled, the dissepiment having vanished at the apex, 

 many-seeded.— A nearly simple, erect herb. Leaves opposite, 

 quite entire. Flowers small, sessile, solitary, axillary. 



1 S. FiLiFORMis (Bell. 1. c). O. B. H. Native of Ticin, 

 about Vercelli in rice-fields. D. C. fl. fr. no. 3651. exclusive opposite, linear, upper ones somewhat alternate. O- B. H. 



Volga. P. Volgensis, Fisch. in litt. 1810. 



Alternate-leaved Water Purslane. Fl. Ju. Sept. Clt. 1816. 



Pl. creeping. 



4 P. ? diaVdra (Nutt. in litt, exD. C. prod. 3. p. 77.) leaves 



of the synonyme of Lobel. 

 Flowers yellowish. 



Herb weak, 3-6 inches long. 



Pl.ito 1| foot. 



Filiform Suffrenia. 



Cult. The seed to be sown in wet or marshy ground in the 

 open air. 



Native of North America, in marshes and bogs about the Ar- 

 kansa. Leaves 8-9 lines long and hardly a line broad. Flowers 

 axillary, sessile. Stigmas 2. Capsule globose. Stamens 2, 

 according to NuttalK Calyx 4-6-cleft. Perhaps a proper genus. 



Diandrous Water Purslane. Pl. creeping. 



Cult. The species of Water Purslane grow in any soil that 



IV. AMELETIA (from afieXr^roQy ameletos, neglected. The is moist, where the seeds may be sown. 



present genus was formerly included in the genus Peplis^ from 



D. C. mem. soc. hist. 



its characters having been overlooked), 

 nat. gen. 3, pt, ^ 



Lin. syst. 



^^ • 



p. 82. prod. 3. p. 76. — Peplis species of Willd. 



Tetr^ndria^ Monogyma. Calyx campanulately- 

 tubular ; larger lobes 4, erect, ovate, acuminated, connivent, 

 smaller ones 4, tooth-formed at the sinuses. Petals none. Sta- 

 mens 4, inserted in the tube of the calyx. Ovarium ovate. 

 Style filiform ; stigma capitate. Capsule ovate, when young 2* 

 celled, but in the adult state only 1 -celled, from the dissepiment 

 having vanished, 2-valved, many-seeded. — An herb with oppo- 

 site, entire leaves. Spikes axillary, sessile, bracteate. Flowers 



VL AMMA'NNIA (in honour of John Ammann, once pro- 

 fessor of botany at Petersburgh ; author of Stirpium rariorum 

 in imperio Rutheno sponteprovenientium icones et descriptiones, 

 1 vol. 4to. Petersburgh, 1739). Houst. in Lin. gen. no. 155. 

 Lam. ill. t. 77. D. C. mem. soc. gen. 3. pt. 2. p. 79. D. C 

 prod. 3. p. 77. — Cornelia, Hard, spec. 2. p. 1. 1. 1. 



Lin. syst. Tetra-Heptcmdria, Monogyma. Calyx campa- 

 nulate, with 4-7, erect, flat teeth, and 4-7 horn-formed, spread- 

 Petals 4-7, alter- 



ing, smaller ones rising from the sinuses. 

 nating with the erect teeth of the calyx. 



Stamens equal in 



small, bibracteolate at the base, sessile along the rachis, rising number to the petals, rarely double that number. Capsule oval- 



This genus is inter- globose, membranous, 4-celled, or only 1 -celled when mature. 



from the axils of the elongated bracteas. 



mediate between Ammdnnia and Peplis 



1 A. I'ndica (D. C. 1. c. t. 3. f. I 

 Indies. Peplis I'ndica, Willd 



The habit is peculiar. 

 ,). — Native of the East 



Seeds numerous, fixed to the central placenta, which is tetrago 

 nal. — Smooth aquatic plants. Stems usually tetragonal. Leaves 

 Ammannia pe- opposite, quite entire. Flowers small, axillary, sessile, or on 



ploides, Spreng. syst. 1. p. 444. Branches nearly tetragonal. short pedicels, usually pink or red. 



Leaves obovate-oblong, feather-nerved, bluntish. Spikes rather 



longer than the leaves. 



§ 1. Flowers apetalous. Stamens 4. Some of the species 



Bracteas Jmear-oblong, acute, longer ' , ,. r j • w- j- • • /» ^l * 7n ;».>;« ^ r/>rw 



^ ' *=* are prohahly placed in this division from the petals being very 



Pl. 4 foot. 



than the flowers. 



Indian Ameletia. 



Cult. The seeds of this plant should be sown thinly in a pot, 

 which should be placed in a hot-bed, and when the plants are 

 about 2 inches high, the pot may be removed to the stove or 

 greenhouse, where the plants will flower and ripen their seed. 



V. PE'PLIS (ttettXic, pepltSf the Greek name for the purs- 

 lane : similar habitV Lin. gen. no. 446. Lam. ill. t. 262. 



Portula, Dill. gen. 7. 

 18. " 



caducous. ' : 



1 A. PARViFLORA (D. C. prod. 2. p. 77.) stem erect, tetra- 

 gonal, glabrous ; leaves oblong, sessile ; cymes axillary, many- 

 flowered, longer than the leaves ; calyx 4-toothed ; capsule glo- 

 bose, hardly longer than the calyx. O.B. F. Native of the East 

 Indies. Herb slender. 



habit). 

 D. C. prod. 3. p. 76. 



Small-flcwered Ammannia. 



Pl. I foot. 



3. 



95.) stem 



^ Glaucoides, Mich, 



gen. l». — ChabraeX Adans. fam. 2. p. 234. but not of D. C. 

 Glaux, Vaill. bot. p. 80. t. 15. f. 5. 



Lin. syst. Hexdndriay Monogynia* Calyx campanulate, 

 with 12 lobes, of which 6 are broader than the rest and erect, Ly thrum filiforme, Perr. in litt. 



2 A. FiLiFORMis (D. C. mem. soc. gen. 3. p 

 erectish, branched from the base ; branches diffuse, filiform, 

 tetragonal ; leaves linear ; umbels axillary, many-flowereo, ra- 



the others spreading, subulate, and rising from the sinuses. Pe- 

 tals 6, minute, fugaceous, sometimes wanting. Stamens 6, alter- 

 nating with the petals in front of the broader calycine lobes. 

 Style hardly any ; stigma capitate. Capsule 2-celled, many- 

 seeded. Branched herbs, with opposite or alternate, entire 

 leaves ; and sessile, axillarv. solitarv. insiorniflcant flowers. 



ther loose, pedunculate ; flowers apetalous, tetrandrous ; cap- 

 sule globose, exceeding the calyx. 0. B. F. Native of Senegal. 



Herb weak. 3-4 inches long. 



Filiform Ammannia. PI. ascending. 



5 A. Senegale'nsis (Lam. ill. no. 155. t. 77. f. 2.) stem 

 erect, terete, branched, and floriferous from the base, tetragonal 

 at the apex ; leaves linear-lanceolate, sessile, dilated at the base, 

 cordate; umbels axillary, many-flowered, on short peduncles ; 

 flowers apetalous, tetrandrous ; capsule globose, twice the 



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