200 scuoriiLLAuiACi:.E. (iKiwour iamii.v.) 



* * Ij;(n;es umUviiUJ. 



2. P. pubescens, Solamler. rubescciit or sniootli ; leaves lanceolate, 

 ariitc, srnati' or ciitiiv, ^os.silo or claspinj^ ; the lowest ovate or ohiong, tapering 

 into a slender petiole ; evines spreailin{^, fe\v-flo\vcretl ; tui)e of the corolla grad- 

 inilly dilated above the middle; the lower lip longer than the upper; sterile 

 stamen bearded down one side; anthers smooth. (P. lievigafiis, Soland., a 

 smooth form.) — Dry open woods and fence-rows, Florida to North Carolina, 

 and westward. June and July. — Stem 2° high. Lowest leaves 3' - 5' long. 

 Corolla 1' longr, pale purple. 



3. P. Digitalis, Nutt. Smooth or nearly so ; stem-leaves ovate-lanceolate, 

 serrate or entire, clas)jing ; the lowest oblong, narrowed into a petiole ; cymes 

 few-flowered, spreading, forming a narrow panicle ; tube of the corolla abruptly 

 dilated near the base ; the lips nearly equal ; sterile stamen bearded down one 

 side. — Dry soil, Georgia, Florida, and westward. July. — Stem 2° high. Co- 

 rolla 9"- 12" long, white or pale purple. 



"Var. multiflorus, Benth. Larger (.3° - 4° high); leaves thicker; cymes 

 many-floworod, forming a large spreading panicle; corolla smaller. — Pine bar- 

 rens, Florida. 



5. LINARIA, Juss, Toad-Fl.\x. 



Calyx deeply 5-parted. Corolla personate, spurred at the base; the ujjper lip 

 emarginatc or 2-lobed ; the lower 3-lobed; the throat commonly closed by the 

 prominent palate. Stiimens 4, didynamous. Capsule globose or ovoid, opening 

 at the apex, with few or several tooth-like valves, many-seeded. — Herl)s, with 

 alternate or (on the radical branches) opposite or wliorifd leaves, and axillary or 

 racemose flowers. 



* Stems irith proslrute hninchcs at the base, which hear broader opposite or whorhd 



leaves. 

 1- L. Canadensis, Spreng. Smooth; stem erect, slender, mostly simple; 

 leaves linear, flat, scattered; those on the radical branches oblong; racemes 

 straight ; pedicels erect, as long as the calyx; lobes of the small (3" -4") blue 

 and wliite corolla rounded ; spur filiform, curved, as long as the pedicels. (An- 

 tirrliinum Canadense, L) — Cultivated ground, common. April and May. 

 (D — Stem lo-2° high. 



2. L. Floridana, n. sp. Stem smooth, ascending, paniculately much 

 branched; leaves scattered, fleshy, terete, linear or club-shaped; those on the 

 radical branches obovate ; racemes elongated, flexuous. glandular-hairy ; pedicels 

 spreading, 3-4 times as long as the calyx ; lobes of the small (2") blue corolla 

 truncate or emargiiiate; spur very short. — Driftitiu- sands near the coast, West 

 Florida. April and May. (g) — Stem 3'- 12' high. 



* * Prnstnite branches none. 



3. L. vulgaris, IMiller. Smooth ; stem erect, simple or branched ; leaves 

 alternate, linear or linear-lanceolate, crowded; raceme dense; flowers large (1' 

 long), yellow ; spur subulate ; seeds flattened, margined. — Waste places. North 

 Carolina, and northward. Naturalized. Aug. Ij. — Stem 1°- 3° high. 



