566 ORDER 91. HYDROPHYLLACEuE. 



2 P. hirsuta Nutt? Erect, branching, sparingly hirsute ; Ivs. pinnatifid, 5 to t- 

 lobed, the lower petiolate, almost pinnate, upper sessile, lobes oblong, acutish, those 

 of the radical Ivs. rounded; roc. simple, terminal, 9 to 15-flowered, pedicels twice 

 longer than the linear-oblong brislly-ciliate sepals. A more delicate species, on 

 Stone Mt. Ga. and Ark. Sts. smoothisb, 6 to 12' high, sparingly leafy. Cor. 7" 

 broad, violet blue, 10-spotted around the yellowish throat. Grooves obscurely 

 bordered. Stam. not longer than cor. May, Jn. 



3 P. parviflora Ph. Sts. weak, smoothish, procumbent, subsimple ; Ivs. all petiolate, 

 the lowest elongated, with roundish, remote, stalked leaflets, the upper with dis- 

 tant oblong-lanceolate, entire, acute segm. ; rac. simple, loose, terminal, 6 to 12- 

 flowered; pedicels at length twice longer than the oblong-spatulate, smoothish 

 sepals ; fls. small. (g) Shaded banks, Penn. to Ga. Plant diffuse, ascending, 6 to 

 10' long. Lvs. with their petioles 1 to 3' long, lobes distant, small. Fls. pale 

 blue, 4" wide. Apr., May. 



4 P. congesta Hook. Downy-canescent ; Ivs. pinnate, Ifts. alternate, very 

 unequal, some sessile, others petioled, all incisely lobed, the terminal confluent ; 

 rac. corymbous ; sep. lance-linear ; cor. campanulate, twice longer than the calyx ; 

 stam. exserted. (J) Herb a foot high, in gardens, with numerous bright blue fls. 

 f Texas. 



5. EUTO'CA, R. Br. Calyx 5-parted; cor. deciduous, 5-lobed, imbri- 

 cate in bud ; nectary-grooves ; filam. exserted, with minute scales at 

 base ; style half 2-cleft ; ovary hairy above, half-2-celled, 4 oo-seeded. 

 CD Lvs. hairy, pinnately lobed or entire. 



1 B. viscida Benth. Glandular-pilous, viscid, branched, suberect ; Ivs. peti- 

 olate, ovate, coarsely, and unequally dentate or lobed ; racemes scorpoid, at length 

 elongated ; sep. linear, a third as long as the tubular-campamdate, deep blue corolla ; 

 seeds oo. Gardens. If high. Fls. near 1' long, f California 



2 B. Franklinii Br. Pubescent, simple, erect ; root-lvs. crowded, cauline alter- 

 nate, all pinnatifid, lobes 5 7 ; rac. short, spike-like, cor. blue, spreading-campan- 

 ulate, a third longer than the calyx; seeds oo. Gardens. Fls. numerous. Cali- 

 fornia. 



6. COSMANTHUS, Nolte. MIAMI MIST. (Gr. Kocpog, elegance, 

 avdog, a flower.) Calyx 5-parted ; cor. broadly campanulate, caducous, 

 5-cleft, tube without appendages ; sta. 5, about equaling the (fringed) 

 corolla; nectary minute ; ova. hairy except at base, 1-celled; sty. bifid; 

 caps. 2-valved, valves septiferous in the middle; seeds 4, rugulous. Op 

 Delicate herbs, with alternate Ivs. Rac. long, bractless. Fls. small, 

 white or pale blue. 



1 C. Purshii. Nearly glabrous; lower Ivs. petiolate, pinnatifid, segments few, 

 entire, ovate, terminal one largest, upper Ivs. sessile, pectinately pinnatifid, with 5 

 to 7 oblong, acute, lobes; rac. terminal, simple, 9 to 15-flowered; pedicels longer 

 than the lance-linear sepals. Fields and river bottoms, Penn. to Ga., "W. to la. 

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

 lobes, mostly shorter than the petiole. Cor. delicately fringed, light blue, 5 to 6" 

 broad, spreading. May, Jn. (C. fimbriatus JjTolte. Phacelia fimbriata Ph. not 

 MX. P. Purshii Buckley.) 



2. C. fimbriatus MX. Much branched from the base, pubescent ; sts. slender, 

 assurgent; lower Ivs. petiolate, pinnate, with roundish segments, upper sessile, 

 cleft into 5 to 7 oblong, obtuse lobes ; rac. terminal, simple, 5 to 12-flowered ; pedi- 

 cels about as long as the oblong-spatulate, obtuse sepals. Mts. Va., Tenn. (Miss 

 Dana), to Ga. Sts. 4 to 8' Ions:. Fls. white, delicately fringed, 4 to 5" diam. 

 May. 



6. HYDRO'LEA, L. (Gr. vdup, water, ekaia, oil ; " a viscid (oily) 

 water plant.") Calyx 5-sepaled, persistent ; corolla rotate-cam panulate, 

 6-lobed ; stamens 5, adherent to the corolla tube ; styles 2, stigmas 

 capitate-depressed ; capsule 2-celled, 2-valved, the large, fungous pla- 



