300 FLORA OF TEXAS. 



SCROPHULARIA, L. Figwort. 



Calyx 5-partecl ; corolla globose or oblong, 5-cleffc ; the 

 4 upper lohes erect, with the two uppermost longer, the 

 lowest spreading ; stamens 4, declined ; the fifth sterile 

 and scale-like, placed near the orifice of the tube of the 

 corolla; anther-cells transverse and confluent into one; 

 ca2JSule many-seeded. — Tall lierhs, with opposite leaves, and 

 greenish -purple /o?^er5 in loose cymes, forming a narrow 

 panicle. 



S. NODOSA, L. Smooth; stem 4-sided; tranches elon- 

 gated, spreading ; leaves ovate or oblong, or the upper- 

 most lanceolate, acute, serrate, rounded or cordate at the 

 base ; flowers small. Stem 2°-5° high. 



CHELONE, Tourn. Si^ake-head. 



Calyx o-parted or 5-sepalous, bracted ; corolla inflated- 

 tubular, contracted at the throat, bilabiate ; the upper lip 

 concave, emarginate ; the lower obtusely 3-lobed, woolly 

 in the throat ; stamens 4, with the filaments and cordate 

 anthers woolly, and a fifth sterile one shorter than the 

 others ; seeds imbricated, broadly winged. — Smooth peren- 

 nial herbs, with opposite serrate leaves, and large white or 

 •^wy^Iq floivers in short dense bracted spikes. 



0. GLABRA, L. stem simple or branched, 4-sided ; leaves 

 lanceolate or oblong, acute or acuminate, on very short 

 petioles ; sjnke terminal, imbricated, nearly sessile, simple 

 or branched ; bracts and sepals ovate; corolla white or 

 rose-color. September. Stem 2° high ; leaves 2-4' long, 

 sometimes pubescent beneath ; corolla I'-l^' long, concave 

 beneath. 



PENTSTEMON, L'Her. 



Calyx 5-parted; corolla inflated-tubular, or somewhat 



