LYTHRARIE7E. I. ROTALA. II. CRYPTOTHECA. 



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11 PE'MPHIS. Calyx turbinatc, 12-lobed, the 6 at the sinuses 

 the smallest. Petals 6. Stamens 12. Capsule C-valved, 3- 

 celled at the base. 



12 HEI'MIA. Calyx bibracteolate at the base, campanulate, 

 12-lobed, those at the sinuses horn-formed. Petals C. Stamens 

 12., nearly equal. Ovarium 4-celled. 



13 DIPLU'SODON. Calyx bibracteate at the base (f. 106. a.), 

 12-lobed (f. 106. 6.), those at the sinuses narrowest, the rest 

 triangular. Petals 6 (f. 106. e.). Stamens 6-12-18-24-30-36. 

 Capsule 2-valved, 2-celled, but at maturity only 1-celled. 



14 PHYSOCALY'MNA. Calyx campanulate, 8-toothed, without 

 any at the sinuses. Petals 8, rising from the sinuses of the 

 calyx. Stamens 24. Capsule globose, 1-celled. 



15 DE'CADON. Calyx campanulate, with 5 erect lobes, and 

 5 horn-formed ones at the sinuses. Petals 5. Stamens 10, 5 

 of which are very long. Ovary 3-celled. 



16 NESJE'A. Calyx campanulate, with 4-6 erect lobes, and 

 as many horn-formed ones at the sinuses. Petals 4-6. Stamens 

 8-12, nearly equal. Ovarium 4-celled. 



17 CBE'NEA. Calyx urceolate, 4-cleft. Petals 4. Stamens 

 8. Capsule 1-5-celled. 



18 LAWSONIA. Calyx 4-parted. Petals 4. Stamens 8. 

 Capsule 4-celled, globose. 



19 ABATIA. Calyx subturbinate ; limb 4-parted. Petals 

 wanting. Stamens about 20, inserted near the base of the 

 calycine tube. Capsule 1-celled, 2-valved, opening at the 

 apex. 



20 ANTHERY'LIUM. Calyx 4-parted, equal. Petals 4. Sta- 

 mens 12-16. Capsule 3-4-valved, and probably 3-4-celled, 

 when young. 



21 DODE'CAS. Calyx with an urceolate tube and a 4-cleft limb. 

 Petals 4. Stamens 12. Capsule 4-valved, 1-celled. 



22 GINORIA. Calyx campanulate, 6-cleft. Petals 6. Sta- 

 mens 12. Capsule 4-valved, 1-celled, dehiscent at the apex. 



23 ADENA'RIA. Calyx campanulate, 4-5-cleft. Petals 4-5. 

 Stamens 8-10. Ovary 2-celled. Fruit globose. 



24 GKI'SLEA. Calyx tubular (f. 107. a.), with 4-6 erect teeth, 

 and as many horn-formed, spreading ones at the sinuses. Petals 

 4-6. Stamens 8-12. Ovary 2-celled. Capsule globose (f. 

 107. d.). 



TRIBE II. 



LAGERSTRCEMIE'*. Lobes of calyx valvate in the bud. Petals 

 the same number as the lobes of the calyx, and inserted at its 

 divisions at the top of the tube. Stamens inserted loner dorvn in 

 the calyx than the petals, twice or thrice the number of the petals. 

 Seeds expanded into a membranous wing. Shrubs or trees. 



25 LAGERSTRCE'MIA. Calyx bibracteolate at the base, 6-cleft. 

 Petals 6. Stamens 18-30. Capsule 3-6-valved, 3-6-celled. 



26 LAFOE'NSIA. Calyx bibracteate at the base, campanu- 

 late, 8-1 0-toothed. Petals 10-12. Stamens 20-24. Ovary 2- 

 celled. Berry spherical. 



t Genera belonging to Lythrariece, but are not sufficiently 

 known. 



27 PHYSOPODIUM. Calyx turbinate, 5-toothed. Petals 5. 

 Stamens 10. Ovary oblong. 



28 SYMME'TRIA. Calyx campanulate, 6-cleft. Petals 6. 

 Stamens 12. Ovarium 4-celled; cells biovulate. Drupe bac- 

 cate, 1- 3-celled; cells containing a one 1-seeded reniform nut 

 each. 



Tribe I. 



SALICARIE'vE (so named from the plants agreeing in habit 

 and character with Lytlirum Salicaria, which has received 

 its specific name from its resemblance to Sdlix in its leaves). 

 D. C. mem. soc. h. n. gen. 3. pt. 2. p. 71. D. C. prod. 

 3. p. 75. Lobes of calyx more or less separate in aestivation, 

 or somewhat valvate. Petals many, alternating with the lobes 

 of the calyx, and inserted at the top of the tube at the divisions ; 

 sometimes wanting. Stamens inserted in the tube of the calyx 

 below the petals. Seeds wingless. Herbs or shrubs. 



I. ROTA'LA (from rota, a wheel ; in reference to the vvhorled 

 leaves of the species). Lin. mant. 175. St. Hil. mem. mus. 2. 

 p. 381. D. C. prod. 3. p. 75. 



LIN. SYST. Triandria, Monogijuia. Calyx membranous, 

 tubular, 3-toothed. Petals wanting. Stamens 3, inserted in 

 the middle of the tube of the calyx. Capsule covered by the 

 calyx, 3-valved, 3-celled, many seeded. Small herbs. Leaves 

 sessile, spreading. Flowers minute, axillary, solitary. 



1 R. VERTICILLA'RIS (Lin. 1. c.) leaves 4-8 in a whorl, linear, 

 acute. B. H. Native of the East Indies. En-epael, Rheed. 

 mal. 9. t. 81. ex Lin. Capsule 3-valved, 3-celled. 



Whorled-\eave<l Rotala. PI. | foot. 



2 R. DECUSSA'TA (D. C. prod. 3. p. 76.) leaves opposite, oval- 

 oblong. . B. H. Native of New Holland, at Endeavour River. 

 Ortegioides decussata, Sol. mss. Entelia ammannioides, R. Br. ex 

 Salisb. in litt. Capsule 3-valved, many-seeded. Calyx 3-5 ? 

 toothed ? Stamens 3 ? Habit of Peplis or Ammdnnia. 



JDectmate-leaved Rotala. PL \ foot. 



3 R. MEXICA'NA (Schlecht. et Cham, in Linnaea. 5. p. 567.) 

 leaves 3-4 in a whorl, usually opposite towards the tops of the 

 branches, linear, a little dilated at the base ; flowers in whorls ; 

 capsule 3-valved, 1-celled. Q. W. H. Native of Mexico, in 

 slow running water, near Hacienda de la Laguna. 



Mexican Rotala. PL ! inch. 



Cult. Sow the seeds in a warm moist sheltered place in the 

 open border. 



II. CRYPTOTHE'CA (upvirroe, cryptos, hidden, and Onxa, 

 theca, a cover ; capsule hidden by the calyx). Blum, bijdr. 

 p. 1128. D. C. prod. 3. p. 76. 



LIN. SYST. Didndria, Monogynia. Calyx funnel-shaped, 

 4-cleft. Petals 4, small, or wanting. Stamens 2, opposite, in- 

 serted in the bottom of the calyx ; anthers roundish. Style 1, 

 lateral, obtuse. Capsule girded by the calyx, 1-celled, irregu- 

 larly circumcised at the apex. Seeds numerous. Suffruticose, 

 branched herbs from Java, with angular stems. Leaves oppo- 

 site. Peduncles axillary, many-flowered. This genus agrees 

 with Suffrenia in the number of the stamens, and in the inflo- 

 rescence with Ammannia, 



1 C. DICHOTOMA (Blum. I.e.) leaves linear-lanceolate, broadest 

 at the base, half stem-clasping; corymbs dichotomous ; flowers 

 4-petalled. t} . B. S. Native of Java, in bogs about Batavia, 

 and on the margins of rivers about Buitenzorg. 



Dichotomous Cryptotheca. Shrub 1 foot. 



2 C. APE'TALA (Blum. 1. c.) leaves on short petioles, lanceo- 

 late ; peduncles many-flowered ; flowers apetalous. P; . B. S. 

 Native of Java, on the banks of the river Tjidanie, in the pro- 

 vince of Tjanjor. 



4x 2 



