HYDROPHYLLACEJE. (WATERLEAF FA.MILY.) 333 



1. M. laxa, Lclim. Smooth, or slightly roughened witli appressed scat- 

 tered hairs ; stem weak, slender, creeping at the base, branching ; leaves lance- 

 olate, obtuse, the lowest spatulatc ; racemes elongated in fruit ; flowers distant, 

 on widely spreading pedicels ; calyx hispid with straight hairs, the teeth equal 

 and obtuse ; corolla pule blue. — Low grounds, Florida to Mississippi, and 

 northward. May. Qj — Stem 1° high. Leaves 1'- 1^' long. 



2. M. verna, Nutt. Hirsute with rigid spreading hairs ; stem erect (4' -8' 

 high), branching above; leaves lanceolate, sessile; the lower ones spatulatc, ob- 

 tuse ; calyx longer than the appressed pedicel, hispid, with the hairs near the 

 base hooked ; the teeth unequal, acute. — Var. jiacrosper.ma is every way 

 larger (1°- 1^° high) ; calyx with all the hairs hooked, the lower teeth twice as 

 long as the upper ones. — Dry places in the upper districts, and northward ; 

 the variety, Florida, and westward. March and April. Q) — Corolla white or 

 pale blue. 



11. CYNOGLOSSUM, Tourn. IIound's-Tongue. 



Calyx .5-parted. Corolla funnel-form, with the throat closed with .5 obtuse 

 scales. Stamens included. Nutlets 4, fixed near the apex to the base of the 

 style, covered all over with barbed or hooked bristles- — Racemes with the lower 

 flowers commonly bracted, the upper ones bractless. 



1. C. ofllciliale, L. Villous; stem leafy, branched above ; leaves lanceo- 

 late or oblong, acute ; the upper sessile, the lowest tapering into a long petiole ; 

 racemes hoary, nearly bractless ; nutlets flattened anteriorly and slightly mar- 

 gined ; corolla reddish-violet. — Waste grounds. North Carolina, and northward. 

 Introduced. — Stem 1^-2° high. 



2. C. Virginicum, L. Hispid ; stem simple, stout, naked above ; leaves 

 oval or oblong ; the lowest petiolcd, tlie upper auriculate and clasping; racemes 

 single or corymbose, bractless ; pedicels slender, recurved in fruit ; nutlets 

 rounded anteriorly ; corolla pale blue. — Dry soil, Florida to Mississippi, and 

 northward May and June. — Stem 2° -3° high. Lowest leaves 6'- 9' long. 

 Nutlets 1-4. 



3. C. Morisoni, DC. Hairy ; stem erect, rather slender, wiflely branched ; 

 leaves lanceolate-oblong, acute ; the lowest tapering into a petiole ; racemes 

 numerous, slender, villous, bracted ; pedicels short, recurved in fruit ; corolla 

 small, about as long as the calyx, white or pale blue. (Myosotis Virginiana, 

 Pursh.) — Dry woods in the upper districts of South Carolina and northward. 

 June and July. — Stem 2° - 3° high. 



Order 9G. HYDROPHYLLACE^. (Waterleae 

 Family.) 



Herbs, with alternate or (the lowest) opposite palmately or pinnately 

 divided leaves, and regular flowers, either solitary in the axils, or in 

 1-sided recurved spikes or racemes. — Calyx 5-parted, persistent ; the 



