ros 



LYTHRARIE.E. III. SUFFREMA. IV. AMELETIA. V. PEPLIS. VI. AMMANMA. 



slpclalmts Cryptotlieca. 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. 



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

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

 des plantcs de Frioul et de Carnia, 1 vol. 8vo. Venice, 1802). 

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



LIN. SYST. Decandria, Monogynia. Calyx tubularly-cam- 

 panulnte ; 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 

 oblong, 2-valved, when young 2-celled, but in the adult state 

 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. FIUFORMIS (Bell. 1. c.). Q. B. H. Native of Ticin, 

 about Vercelli in rice-fields. D. C. fi. fr. no. 3651. exclusive 

 of the synonyme of Lobel. Herb weak, 3-6 inches long. 

 Flowers yellowish. 



Filiform Suftrenia. PI. \ to 1 j foot. 



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

 open air. 



IV. A MELE'TIA (from apeXr/rot, amelelos, neglected. The 

 present genus was formerly included in the genus Peplis, from 

 its characters having been overlooked). D. C. mem. soc. hist. 

 nat. gen. 3. pt. 2. p. 82. prod. 3. p. 76. Peplis species of Willd. 



LIN. SYST. TetrAndria, Monogynia. 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 

 small, bibracteolate at the base, sessile along the rachis, rising 

 from the axils of the elongated bracteas. This genus is inter- 

 mediate between Ammannia and Peplis. The habit is peculiar. 



1 A. TNDICA (D. C. 1. c. t. 3. f. A.). Native of the East 

 Indies. Peplis I'ndica, Willd. spec. 2. p. 244. Ammannia pe- 

 ploides, Spreng. syst. 1 . p. 444. Branches nearly tetragonal. 

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

 longer than the leaves. Bracteas linear-oblong, acute, longer 

 than the flowers. 



Indian Ameletia. PI. -| foot. 



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 (irtTrXif, peplis, the Greek name for the purs- 

 lane ; similar habit). Lin. gen. no. 446. Lam. ill. t. 262. 

 D. C. prod. 3. p. 76. Portula, Dill. gen. 7. Glaucoides, Mich. 

 gen. 18. Chabrse'a, Adans. fam. 2. p. 234. but not of D. C. 

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



LIN. SYST. Hexandria, Mono<r>/nia. Calyx campanulate, 

 with 12 lobes, of which 6 are broader than the rest and erect, 

 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, axillary, solitary, insignificant flowers. 



1 P. PO'RTULA (Lin. spec. 474.) leaves opposite, obovate, 

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

 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. hot. t. 1211. Portula diffusa, Mcench. 

 Calyx reddish. Petals white, very minute, or wanting. 



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



2 P. BIFLORA (Saltzm. pi. exsic. 1825.) leaves opposite or 

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

 flowers twin, axillary. 0. B. H. Native in humid places 

 about Tangiers. Flowers rather larger than those of P. portulu. 



Two-flowered Water Purslane. PI. creeping. 



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

 somewhat spatulate. . B. H. Native of Caucasus, about the 

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



Alternate-leaved Water Purslane. Fl. Ju. Sept. Clt. 181G. 

 PI. creeping. 



4 P. ? DIA'NDRA (Nutt. in litt. ex D. C. prod. 3. p. 77.) leaves 

 opposite, linear, upper ones somewhat alternate. Q. B. H. 

 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 '.', 

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



Diandrous Water Purslane. PI. creeping. 

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

 is moist, where the seeds may be sown. 



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

 fessor of botany at Petersburg!! ; author of Stirpium rariorum 

 in imperio Rutheno sponte provenientium iconcs 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. t. 1. 



LIN. SYST. Tctra-Heptandria, Monogynia. Calyx campa- 

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

 ing, smaller ones rising from the sinuses. Petals 4-7, alter- 

 nating with the erect teeth of the calyx. Stamens equal in 

 number to the petals, rarely double that number. Capsule oval- 

 globose, membranous, 4-celled, or only 1-celled when mature. 

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

 nal. Smooth aquatic plants. Steins usually tetragonal. Leaves 

 opposite, quite entire. Flowers small, axillary, sessile, or on 

 short pedicels, usually pink or red. 



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

 are probably placed in this division from the petals being very 

 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. Q. B. F. Native of the East 

 Indies. Herb slender. 



Small-fli.wered Ammannia. PI. ^ foot. 



2 A. FILIFORMIS (D. C. mem. soc. gen. 3. p. 95.) stem 

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

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

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

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

 Lythrum filiforme, Perr. in litt. Herb weak. 3-4 inches long. 



Filiform Ammannia. PI. ascending. 



3 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 



