394 



HYDROPHYLLEjE. I. HYDROPHYLLUM. II. ELLISIA. III. NEMOPHILA. 



tered pili above, pale and glabrous beneath, with 2-3 pairs of 

 segments : lower segments on short petioles : upper ones usu- 

 ally combined with the terminal one. Corollas beautiful blue. 



Virginian Water-leaf. Fl. May, June. Clt. 1739. PI. ^ to 

 1 foot. 



4 H. MACROPHY'I.LUM (Nutt. in journ. acad. nat. scienc. phil. 

 7. p. 111.) leaves pinnate ; segments or leaflets deeply toothed ; 

 cymes of flowers very dense; calycine segments lanceolate, cili- 

 ately hispid. If.. H. Native of North-west America, in fis- 

 sures of moist rocks, in the interior of Columbia, Douglas, 

 1826; in the forests of Kentucky, Mr. Short, ex Nutt, I.e. 

 H. capitatum, Dougl. mss. ex Benth. 1. c. p. 282. H. caelesti- 

 num, Dougl. mss. The specimens collected on moist rocks in 

 the interior of Columbia, (H. capitatum, Dougl. mss.,) have the 

 leaves hispid on both surfaces ; the segments or leaflets but 

 little divided, and not narrowed at their base. The other speci- 

 mens gathered in shady moist woods (H. caelestinum, Dougl. 

 mss.) have the leaves larger, with broader segments, much more 

 cut, and the flowers fewer. The same plant also occurs in 

 California, but with the leaves much more hispid on the upper 

 surface, and clothed with whitish down beneath, ex Benth. All 

 these differences are perhaps attributable to locality. Corollas 

 blue. 



Large-leaved Water-leaf. PI. 1 foot ? 



j- A doubtful species. 



5 H. LINEA'RE (Pursh, fl. 1. p. 134.) pilose; leaves linear; 

 racemes elongated. I/ . H. Native on the banks of the Mis- 

 souri. 



Zinear-leaved Water-leaf. Fl. April. PL? 



Cult. Plants of the most easy culture. They thrive best in 

 a shady moist situation, and are readily increased by dividing at 

 the root in spring or autumn. 



II. ELLI'SI A (so named by Linnaeus, in memory of his cor- 

 respondent John Ellis, F.R.S., author of a Treatise on Corol- 

 lines.) Lin. gen. p. 83. no. 244. Schreb. gen. no. 268. Juss. 

 gen. p. 129. ed. Usteri, p. 144. Benth. in. Lin. trans. 17. p. 

 274. 



LIN. SYST. Pentdndria, Monogynia. Calyx without appen- 

 dages at the sinuses. Corolline processes 10, short or wanting. 

 Stamens rather shorter than the corolla. Placentas large, free 

 on the back, filling the ovarium, biovulate. North American 

 small annual herbs. Leaves pinnately cut : lower ones oppo- 

 site. Lower peduncles opposite the leaves : superior ones dis- 

 posed in simple, unilateral, loose racemes. 



1 E. NYCTELE'A (Lin. gen. 

 97. syst. 195. mant. p. 336.) 

 petioles without appendages ; 

 leaves pinnatifid, with cut lobes; 

 calyx increasing much after flo- 

 rescence. 0. H. Native of 

 Virginia, on the banks of the 

 Potomac river, and on the banks 

 of the Missouri. Gaertn. fil. 

 carp. 3. t. 184. f. 6. Lam. ill. 

 t. 97.- Benth. 1. c. p. 274. Po- 

 len onium Nyctelea, Lin. spec. 

 231. Ehret, nov. act. ups. 1. 

 p. 97. t. 5. f. 5. Trew. pi. sel. 

 p. 56. t. 99. Planta Lithosper- 

 ma aflinis, Act. eph. nat. cur. 

 1761. p. 330. t. 7. f. 1 Mor. 

 hist. 3. p. 451. sect. 11. t. 28. 



FIG. 38. 



f. 3. Segments of the fruit-bearing calyx ovate-lanceolate, 

 acute, foliaceous, half an inch long. Stem dichotomous. Pe- 

 duncles 1-flowered, opposite the leaves. Leaves downy. Flow- 

 ers drooping. Corolla white, with minute, purple dots inside 

 the divisions. 



Nyctelea or Cut-leaved Ellisia. Fl. July, Aug. Clt. 1755. 

 PI. | foot. 



2 E. AMBI'GUA (Nutt. gen. 1. p. 118.) plant decumbent, 

 branched ; stem glabrous, rather glaucous ; leaves hairy, ly- 

 rately pinnatifid, almost sessile : segments nearly lanceolate, 

 angularly toothed or lobed ; racemes opposite the leaves, lateial 

 and terminal ; corolla small, hardly longer than the calyx : 

 with emarginate segments. O- H. Native on the banks of 

 the Missouri, in alluvial soils. Corolla white ? 



Ambiguous Ellisia. PI. decumbent. 



3 E. MICROCA'LYX (Nutt. in amer. phil. soc. trans, n. s. 5. 

 p. 191.) smoothish, decumbent; leaves lyrately pinnatifid, on 

 long petioles ; segments few (3-5) : lateral ones oblique, deeply 

 toothed: middle one trifid and obtuse ; flowers solitary, minute. 

 O- H. Native of the Arkansas, Alabana, &c. Hydrophyllum 

 pusillum, Muhl. herb. Leaves slightly hairy ; lateral segments 

 half reniform ; the terminal division nearly entire, but trifid. 

 Calyx minute. Corolla very small, subcampanulate ; with 5 

 shallow lobes. 



Small-calyxed Ellisia. PI. decumbent. 



4 E. RANUNCULA V CEA (Nutt. 1. c.) rather hairy ; stems pro- 

 cumbent ; leaves pinnatifid, somewhat 5-lobed : superior ones 

 tripartite, deeply toothed, obtuse, on long petioles ; racemes 

 secund, few-flowered. 0. H. Native of the Arkansas, in 

 shady, alluvial, humid forests. Lateral segments of the supe- 

 rior leaves toothed on the lower side ; the central segment trifid. 

 Corolla pale blue, cylindrically campanulate, naked. Ovarium 

 hairy. Nearly allied to E. amligua, from which it differs in 

 the less compound leaves, on conspicuous petioles. 



Crowfoot-like Ellisia. PI. procumbent. 



5 E. MEMHRAN.VCEA (Benth. in Lin. trans. 17. p. 274.) 

 quite glabrous ; petioles exappendiculate ; leaves pinnatifid: seg- 

 ments quite entire ; calyx hardly increasing after florescence. 

 .? H. Native of California, Douglas. Leaves thin; lobes 

 divaricate, broad-lanceolate, obtuse. Flowers small, pedicel- 

 late, loosely racemose. Corolla white. 



Membranous-leaved Ellisia. PI.? 



6 E. CHRYSANTHEMIFOLIA (Benth. 1. c.) hispid ; petioles au- 

 riculately dilated at the base ; leaves sub-bipinnatifid : lobes 

 deeply toothed, obtuse ; calyx increasing a little after flores- 

 cence. ,?H. Native of California, Douglas. Flowers similar 

 to those of E. membrandcea. Processes of corolla toothed. 



Chrysanthemum-leaved Ellisia. PI. ? 



Cult. The seeds of these plants only require to be sown in 

 the open ground ; and if allowed to scatter their seeds, will 

 maintain themselves. 



III. NEMO'PHILA (from rfftot, nemos, a grove ; and 

 (j>i\eii>, phileo, to love ; the plants delight in shady situations.) 

 Barton, fl. amer. p. 61. Nutt. journ. acad. nat. scienc. phil. 

 vol. 2. p. 179. Benth. in Lin. trans. 17. p. 272. Phacelia 

 species, Juss. gen. p. 144. Pursh, fl. amer. sept. 1. p. 140. 



LIN. SYST. Pentdndria, Monogynia. Sinuses between the 

 lobes of the calyx appendiculated by reflexed teeth. Corolline 

 processes 10, short or wanting. Stamens rather shorter than 

 the corolla. Placentas large, free on the back, filling the ova- 

 rium, 2-12-ovulate. Diffuse, brittle, annual herbs. Lower 

 leaves opposite ; all pinnatifid. Peduncles sometimes axillary, 

 1-flowered; sometimes few at the tops of the branches, disposed 

 in short racemes. Flowers usually blue. 



