IIYDROPHYLLACE-iE. (WATERLEAF FAMILY.) 333 



1. M. laxa, Lchm. Smooth, or slightly roughened with appressed scat- 

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

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

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

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

 northward. May. (3) Stem 1 high. Leaves !'-!' long. 



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

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

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

 base hooked ; the teeth unequal, acute. Var. MACROSPERMA is every way 

 larger (1- l 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. Corolla white or 

 pale blue. 



11. CYNOGLOSSUM, Tourn. HOUXD'S-TONOUE. 



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. officinale, 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 l- 2 high. 



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

 oval or oblong ; the lowest petioled, the 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, widely 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. HYDROPHYL.LACEJE. (WATERLEAF 

 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 



