50 



HYDROPHYLLACEAE. 



[Vol,. III. 



2. Nama quadrivalvis (Walt.) Kuntze. Hairy Nama. (Fig. 3012.) 



Hydrolea quadrivalvis Walt. FI. Car. i lo. 17SS. 

 tiydrolea Caroliniana Michx. Fl. Bor. Am. 1: 



'177. 1803. 

 Nama guadnvalvts Kuntze, Rev. Gen. PI. 435. 

 1891. 



Similar to the preceding species, but pubes- 

 cent, at least above, and on the calyx, with 

 spreading hairs, usually bearing slenderspines 

 in the axils; stem ascending, i°-2° high. 

 Leaves lanceolate, acute or acuminate, gla- 

 brous, or sparingly pubescent, petioled, 2'-%' 

 long, 3"-S" wide; lower petioles ^\long,'or 

 more; flowers in axillary clusters; sepals lan- 

 ceolate, or linear-lanceolate, acuminate, about 

 as long as the corolla; capsule 2"-3" in diam- 

 eter, longer than the styles, about the length 

 of the sepals. 



In wet soil, southeastern Virginia to Florida 

 and Louisiana. June-.^ug. 



3. Nama ovata (Nutt.) Britton. 

 Ovate-leaved Nama. (Fig. 3013.) 



Hydrolea ovala Nutt. Trans. Am. Phil. Soc. 



(II.) 5:196- 1833-37- 

 N. ovata Britton, Mem. Torr. Club, 5: 272. 1894. 



Stem erect or nearly so, i°-3° high, usually 



branched near the summit, puberulent, or 



somewhat hirsute, at least above, usually 



spine-bearing in most of the axils. Leaves 



ovate, rarely ovate-lanceolate, puberulent, or 



glabrous, short-petioled, or the upper almost 



sessile, i'-2)4' long, yi'-i^i' wide, acute at 



the apex, narrowed or rounded at the base; 



flowers in terminal clusters, often 1' broad, 



or more; sepals lanceolate, acuminate, very 



villous, shorter than the corolla, longer than 



the capsule; styles longer than the sepals. 



In wet soil. Georgia to Missouri, Louisiana 

 and Texas. May-Sept. 



Family 23. BORAGINACEAE Lindl. Nat. Syst. Ed. 2, 274. 1836. 



Borage Family. 



Annual biennial or perennial herbs, shrubs, or some tropical species trees. 

 Leaves alternate, very rarely opposite or verticillate, exstipulate, mostly entire 

 and hispid, pubescent, scabrous or setose. Flowers perfect, usualh' regular, 

 mostly blue, in one-sided scorpioid spikes, racemes, cj'mes, or .sometimes scat- 

 tered. Calyx inferior, mostly 5-lobed, 5-cleft, or 5-parted, usually persistent. 

 Corolla gamopetalous, mostly regular and 5-lobed, .sometimes crested or appen- 

 daged in the throat, rarely irregular, its lobes imbricated, convolute, plicate or 

 induplicate in the bud. Stamens as many as the corolla-lobes and alternate with 

 them, inserted on the tube or throat; filaments slender or short; anthers 2-celled, 

 the sacs longitudinally dehiscent. Disk annular, entire, or 5-lobed, or none, 

 commonly incon.spicuous. Ovarj' superior, of 2 2-ovuled carpels, entire, or the 

 carpels commonly deeply 2-lobed, making it appear as of 4 i-ovuled carpels; 

 style simple, entire or 2-cleft in our genera; ovules anatropous or amphitropous. 

 Fruit mostly of 4 i-seeded nutlets, or of 2 2-seeded carpels. Endosperm fleshy, 



