CosMANTHus. XCV. HYDROPHYLLACE^. 437 



dentate, teeth obtuse-mucronate; Jls. in crowded fascicles ; peds. shorter than the 

 petioles. — % Gluite different in aspect from the last. Found in alpine woods, 

 Can. to Car. W. to Ohio ! Stem 12 — 18' high, with large, roughish leaves, 

 divided into 5 — 7 lobes. Fascicles of flowers dense, axillary and terminal. 

 Corollas white or variously tinged with purple. Stamens and style much 

 exserted, as in the last. Jn., Jl. 



4. H. MACROPHYLLUM. Nutt. (H. hispidum. Riddell.') 

 Mlwle plant reversely hispid with white hairs ; Ivs. oblong-oval in outline, 

 pinnatifid, lower segments distinct, upper confluent, all incised intc lounded, 

 mucronate teeth, cauline solitary or tew, much smaller; cymes terminal, long- 

 pedunculate, dense-flowered ; cor. glabrous except the grooves inside. — % Ohio, 

 Locke ! to the Alleghany Mts. Stem a foot high, almost leafless, with a termi- 

 nal, globose cyme of white flowers. Radical leaves 8 — 12' (including the 

 petiole 3 — 4') by 3 — 5', the segments ovate-oblong. Corolla twice longer than 

 the ovate, acute sepals, half as long as the capillary filaments which are 9" in 

 length. Jn. 



2. ELLISIA. 

 In honor of Joseph Ellis, F. R. S., an English naturalist, correspondent of Linnaeus. 



Calyx 5-parted, equaling the tubular-campanulate, caducous corol- 

 la ; tube with 10 minute appendages within, limb 5-lobed ; sta. 

 included ; nectary annular, 5-toothed ; sty. bifid, with linear lobes ; 

 caps, ovoid-globose, 2-valved ; seeds 4. — ® North American herbs, 

 with pinnatifid Ivs. Cor. white. 



E. Nyctel5;a. 



Ascending, branching, with few, scattered hairs ; Ivs. pinnatifid, petiolate, 

 upper ones alternate, segments linear-oblong, nearly distinct, sparingly dentate ; 

 ped. 1-flowered, opposite the leaves, about as long as the sepals ; cal. seg. trian- 

 gular-acuminate, broad at base, longer than the tube of the corolla. — 111. 

 Mead', to Va., woods and river banks. Stem 4 — 10' long. Leaves 1 — 2' long 

 I as wide. Calyx at length remarkably large for the size of the plant, nearly 

 an inch in diam. Corolla lobes obtuse, emarginate, with purple spots at base 

 inside. 



3. COSMANTHUS. Nolle. 

 G-r. Koafios, elegance, av%s, a flower. 



Calyx 5-parted ; cor. broadly campanulate, caducous, 5-cleft, tube 

 without appendages ; sta. 5, about equaling the corolla ; nectary 

 minute ; ova. hairy except at base, 1 -celled ; sty. bifid ; caps. 2-valved, 

 valves septiferous in the middle ; seeds 4 — 10, rugulose. — ® JV. Ame- 

 rican herbs., ivith alternate Ivs. Rac. long., bractless. Fls. small, white 

 or pale blue. 



1. C. PARVtFLORUs. Alph. DC. (Phacelia. Ph. Eutoca. Dr.) 

 Diffuse, pubescent ; Ivs. .subsessile, pinnatifid or trifid, segments oblong 



or ovate, sparingly lobed or entire; rac. solitary; pedicels in flower longer than 

 the calyx; sta. subequal to the corolla.; placental — 8-ovuled. — Penn. to Va. 

 Stem 6 — 8' high. Flowers pale blue, 4" diam., the lobes rounded and entire. 

 Capsule ovoid, shorter than the calyx. May. 



2. C. PuRsHii. Wood. (C. fimbriatus. Nolle. Phacelia fimbriata. Ph. 

 not M.t. P. Purshii. Buckley.) Miami Mist. — Nearly glabrous; lower 



Ivs. petiolate, pinnatifid, segments few, entire, ovate, terminal one largest, upper 

 Ivs. sessile, pectinately pinnatifid, with oblong, acute lobes; rac. terminal, sim- 

 ple, 5 — 10-flowered ; pedicels longer than the lance-linear sepals ; lobes of the cor. 

 fimbriate. — Fields and river bottoms, Penn. to Ga., W. to la. ! and Ky. Plant 

 8 — 12' high, slender and with slender branches. Radical leaves with obtuse 

 lobes, mostly shorter than the petiole. Flowers light blue, 4 — 5" broad, spread- 

 ing. May, Jn. 



