552 SCROPHULARINEjE. XLVI. LIMOSELLA. XLVII. HYDRANTHELIUM. XLVIII. CONOBEA. XLIX. MIMULUS. 



Attenuated-leaved Lindernia. PI. procumbent. 



Cult. For culture and propagation see Herpestis, p. 546. 



XLVI. LIMOSE'LLA (a dim. of Limits, mud, in which the 

 plants delight to grow.) Lin. gen. no. 776. Schreb. gen. no. 

 1039. Gaertn. fruct. 1. p. 228. t. 50. Juss. gen. p. 96. ed. 

 Usteri, p. 108. Lam. ill. t. 535. f. 2. R. Br. prod. 443. 



LIN. SYST. Didynamia, Angiospermia. Calyx 5-cleft, equal. 

 Corolla short, campanulate, 5-cleft, equal. Stamens didynamous, 

 or rarely equal ; sometimes only 2. Stigma capitate. Capsule 

 semibilocular, 2-valved ; valves entire ; dissepiment incomplete. 

 Small marsh creeping herbs. Leaves fascicled ; petioles di- 

 lated at the base, half sheathing. Scapes 1-flowered, bractless. 

 In the natural series this genus comes near Pinguicula. 



1 L. AQUA'TICA (Lin. spec. 881.) leaves lanceolate-spatulate, 

 longer than the scapes ; flowers didynamous, rarely diandrous. 

 Q.W. H. Native of the North of Europe, in inundated places ; in 

 some parts of Britain, in like situations. Smith, engl. bot. 357. 

 Oed. fl. dan. t. 69. L. annua, Lindern. als. 266. t. 5. Planta- 

 gin611a, Hall. jen. 23. t. 6. f. 2. Plantaginella palustris, Bauh. 

 pin. p. 190. Mor. hist. 3. p. 605. sect. 15.t. 2. f. 1. Petiv. brit. 

 t. 65. f. 12 Loes. pruss. 261. t. 81. Plukn. aim. 20. t. 74. 

 f. 4. Mentz. 2. t. 7. f. 6. Corollas small, whitish without, and 

 reddish within. 



Far. (3, Limosella diandra, Krock. fl. sil. 2. no. 1006. t. 27. 

 f. /3. flowers diandrous. 



Aquatic Mudwort. Fl. July, Sept. Britain. PI. creeping. 



2 L. AUSTRA'LIS (R. Br. prod. p. 443.) leaves spatulate- 

 linear, longer than the scapes ; flowers didynamous, rarely dian- 

 drous. Q. W. G. Native of Van Diemen's Land, and the 

 south coast of New Holland, in marshes. 



Southern Mudwort. PI. creeping. 



3 L. TENUIFOLIA (Nutt. journ. acad. sc. phil. 1. p. 115. gen. 

 amer. 2. p. 43.) leaves linear and very narrow, scarcely dilated 

 at the points; scapes 1-flowered, about equal in length with the 

 leaves; flowers tetrandrous. O-W. H. Native of Germany, and 

 North America, on the banks of the Delaware. Corolla white, 

 externally blue, 4-5-lobed. 



Fine-leaved Limosella. PI. creeping. 



Cult. The species being hardy, aquatic annuals, the seeds 

 may be sown by the edge of a pond, or cistern. 



XLVII. HYDRANTHE'LIUM (from Map, hydor, water; 

 and at>6n\iov, anthelion, a little flower.) H. B. et Kunth, nov. 

 gen. 7. p. 202. Willichia, Mutis. 



LIN. SYST. Tridndria, Monogynia. Calyx deeply 4-parted, 

 bractless, permanent ; segments opposite, by pairs, 2 of which 

 are oblong, obtuse, 3-nerved ; and the other 2 are lanceolate, 

 acutish, 1 -nerved. Corolla funnel-shaped ; limb trifid ; the 

 third lobe twice the breadth of the others, and emarginate. 

 Stamens 3, inserted in the throat of the corolla, and alternating 

 with its lobes, and shorter than them ; anthers oblong, 2-celled. 

 Stigma 2-lobed. Capsule ovate-roundish, mucronate, mem- 

 branous, 2-celled ? 2-valved ? dissepiment placentiferous on 

 both sides, at length free. Seeds many, subcylindrical, a little 

 arched, exalbuminous, striated, pendulous. Embryo cylindrical, 

 2-lobed. Radicle superior looking to the hilum. A small, float- 

 ing, glabrous, radicant herb. Leaves opposite, quite entire, 7- 

 nerved. Flowers axillary, solitary, alternate, pedicellate, minute, 

 white. This genus comes very near to Lindernia and Limosella ; 

 but is distinguished from them in the structure of calyx, corolla, 

 and number of stamens. 



1 H. CALLITRICHOI'DES (H. B. et Kunth, 1. c. 7. p. 203. t. 



644.) Q. W. S. Native in the Missions of the Orinoco, in 

 the cataract of Atures. 



Callitriche-like Hydranthelium. PI. aquatic. 



Cult. For culture and propagation see Limnophila, p. 543. 



XLVIII. CONO'BEA (meaning not explained by Aublet.) 

 Aubl. guian. 2. p. 639. t. 257. Juss. gen. p. 97. ed. Usteri, 

 p. 109. Lam. ill. t. 522. f. 2. 



LIN. SYST. Didynamia, Angiospermia. Calyx tubular, 5- 

 toothed, bibracteate at the base. Corolla tubular, bilabiate ; 

 upper lip erect, emarginate ; lower lip 3-lobed, unequal. Sta- 

 mens 4, didynamous ; anthers sagittate. Stigma 2-lobed. Cap- 

 sule pea- formed, girded by the calyx, 1 -celled, 4-valved, many- 

 seeded ; placenta central, free. A creeping marsh herb. Stems 

 tetragonal. Leaves opposite. Flowers solitary, axillary, pedi- 

 cellate. 



1 C. AQUA'TICA (Aubl. 1. c.) stems procumbent, nodose ; leaves 

 reniform, toothed, half stem-clasping; peduncles longer than 

 the leaves, solitary. Native of Guiana, on the edges of rivers. 

 Flowers blue. Plant glabrous. Calyx 5-toothed. 



Aquatic Conobea. PI. creeping. 



2 C. PUNCTA'TA (Mart, in act. bonn. 1 1 . p. 43.) stem ascend- 

 ing, rooting at the base ; leaves ovate, acute, serrated, dotted, 

 scabrous above ; flowers axillary, twin, a little shorter than the 

 petioles. If.. G. Native of Brazil, on the road to Felisbert. 

 Leaves 1 to 1| inch long. Calyx 5 -parted ; segments ovate- 

 lanceolate, acuminated, with membranous edges. Corolla twice 

 as long as the calyx. Segments of the lower lip oblong, undu- 

 lated. 



Dotted Conobea. PI. 1 foot, procumbent at the base. 



3 C. VISCOSA (Spreng. syst. 2. p. 771.) stem erect, clammy at 

 top ; leaves lanceolate, sharply serrated, quite glabrous ; pedun- 

 cles usually twin, shorter than the leaves. Native of Brazil. 



Clammy Conobea. PI. erect. 



Cult. For culture and propagation see Herpestis, p. 546. 



XLIX. MI'MULUS (from /jn^ia, mimo, an ape or actor ; 

 so named from the ringent corollas of the species.) Lin. gen. 

 no. 783. Schrad. gen. no. 1049. Gaertn. fruct. 1. p. 245. t. 

 53. Juss. gen. 122. ed. Usteri, 137. R. Br. prod. 439. H. 

 B. et Kunth, nov. gen. 2. p. 369. Benth. scroph. ind. 27. 



LIN. SYST. Didynamia, Angiospermia. Calyx tubular, 5- 

 angled, 5-toothed. Corolla ringent ; upper lip 2-lobed : lower 

 one trifid, usually bi-gibbous at the base ; segments all flat. 

 Stamens 4, didynamous, inclosed ; cells of anthers diverging or 

 divaricate, at length subconfluent. Stigma bilamellate. Cap- 

 sule hardly furrowed, 2-valved, with a loculicidal dehiscence ; 

 valves entire, with flat margins ; dissepiment at length free ; 

 placentas adnate. Erect or procumbent, glabrous, rarely vil- 

 lous herbs ; with usually tetragonal stems. Leaves opposite, 

 usually toothed, rarely quite entire. Flowers axillary, solitary, 

 pedicellate : superior ones sometimes racemose. 



1. Stems erect. Leaves feather-nerved. Calyx tubular. 



1 M. LINEA'RIS (Benth. scroph. ind. p. 27.) plant suffruti- 

 cose, very clammy ; stem erect, branched ; leaves linear, quite 

 entire, with revolute edges ; peduncles subracemose ; calyxes 

 elongated, plicate, with lanceolate-linear, obtuse, unequal teeth. 

 Tj . F. Native of California, Douglas. 



Linear-leaved Monkey-flower. Shrub erect. 



2 M. GLuiiNbsus (Wendl. obs. p. 51.) shrubby, clammy; 

 stem erect, downy ; leaves glabrous above, oblong or lanceolate, 



