66<D FLORA. 



mm. long, the angles with stout pubescent wings, the faces strongly ridged; seeas 

 irregular, minutely papillose. N. Y. to W. Va. and Fla. May-Aug. 



4. Kneiffia linaeris (Michx.) Spach. NARROW- LEAVED SUNDROPS. (I. F. f. 

 2590.) Slender, pilose or nearly glabrous. Stems erect or ascending. 1.5-5 dm. 

 tall, finally angled; basal leaves spatulate or broadly oblanceolate, 5-8 cm. long, 

 entire or nearly so; cauline leaves linear or linear-lanceolate, 2.5-7.5 cm. long, 

 slightly toothed; flowers 1.8-3 cm - broad; calyx slightly pubescent; petals shal- 

 lowly notched at the apex and eroded; capsule, oblong-club-shaped, 8-14 mm. long, 

 the angles with papery glabrous wings, its faces ridged; seeds irregular, angled. 

 Conn, to Tenn. and Ga. June-Sept. 



5. Kneiffia pumila (L.) Spach. SMALL SUNDROPS. (I. F. f. 2591.) Erect, 

 sometimes finely puberulent, 2-6 dm. high. Leaves oblanceolate or oblong, nar- 

 rowed at the base and often petioled, entire or very nearly so, 2-5 cm. long, the 

 basal ones broader and shorter; flowers 8-25 mm. broad; calyx-tube shorter than 

 the ovary; petals obcordate; capsule sessile or short-stalked, glabrous or nearly so, 

 6-12 mm. long, the body obovoid, somewhat wing-angled. In dry soil, N. S. to 

 Manitoba, N. J., Ga. and Kans. June- Aug. 



6. Kneiffia fruticosa (L.) Raimann. COMMON SUNDROPS. (I. F. f. 2592.) 

 Erect, usually branched, 3-9 dm. high, rarely glabrous. Leaves lanceolate, ovate- 

 lanceolate or oval-lanceolate, repand-denticulate, or rarely nearly entire, 2.5-10 cm. 

 long; flowers 2.5-5 cm - broad; calyx-segments lanceolate ; petals obcordate ; capsule 

 sessile or short-stalked, oblong, prominently winged, glabrous or pubescent, 

 6-8 mm. long. In dry soil, N. S. to Ga., Minn, and La. June- Aug. 



Kneiffia fruticbsa pilosella (Raf.) Britton. Pubescent with long spreading hairs 

 throughout. N. Y. to 111., south to Ga. 



7. Kneiffia glauca (Michx.) Spach. GLAUCOUS SUNDROPS. (I. F. f. 2593.) 

 Erect, glabrous and glaucous. 4-9 dm. high. Leaves ovate or oval, repand-den- 

 ticulate, 5-14 cm. long; flowers bright yellow, 3.5-7.5 cm. broad, very showy; 

 petals broadly obovate, emarginate; calyx-lobes ovate-lanceolate, acuminate; cap- 

 sule oblong, broadly 4-winged, glabrous, 10-12 mm. long, borne on a short stalk. 

 In dry woods, mountains of Va. to Ga. and Ala. May-Sept. 



ii. HARTMANNIA Spach. 



Annual or perennial herbs with branched stems. Leaves alternate, commonly 

 pinnatifid or lyrate; buds drooping. Flowers white, red, or purple, diurnal, in 

 terminal spikes or racemes. Calyx-tube funnelform. Ovary elongated; ovules 

 numerous on slender stalks, in many rows. Capsules club-shaped, 4-winged. 

 Seeds not tuberculate. [In honor of Emanuel Hartmann, a resident of Louisiana.] 

 About 10 species, in N. and S. Am. 



i. Hartmannia speciosa (Nutt.) Small. SHOWY PRIMROSE. (I. F. f. 2594.) 

 Erect, ascending or decumbent, branched, 1.5-9 dm. high, puberulent or finely 

 pubescent. Stem-leaves lanceolate or linear- lanceolate, acutish, sinuate or pin- 

 natifid, 5-7.5 cm. long; basal leaves oval or oval-lanceolate, repand or pinnatifid at 

 the base; flowers white or pink, 3.5-8 cm. broad; petals emarginate; calyx-lobes 

 ovate-lanceolate, acuminate; capsule club-shaped, strongly 4-ribbed, 4-winged, 

 pubescent, 12-18 mm. long. Prairies, Mo. and Kans. to La., Tex., Ariz, and 

 northern Mex. May-July. Extensively naturalized in 111., S. Car. and Ga. 



12. PACHYLOPHUS Spach. 



Perennial acaulescent or nearly acaulescent herbs. Leaves basal, pinnatifid or 

 pinnately -toothed. Flowers basal, tufted. Calyx-tube linear-funnelform, the 

 segments shorter than the tube. Petals white or pink. Capsules basal, woody, 

 pyramidal, their angles retuse or obtuse, transversely wrinkled. Seeds sessile, in I 

 or 2 rows, deeply furrowed along the raphe. [Greek, referring to the tuberculate 

 edges of the valves of the capsule.] A monotypic genus of western N. Am. 



I. Pachylophus caespitosa (Nutt.) Raimann. SCAPOSE PRIMROSE. (I. F. 

 f. 2595.) Perennial or biennial from a woody root. Leaves clustered at the base, 

 narrowed into slender petioles, lanceolate, oblanceolate or oval, densely pubescent, 

 sinuate-dentate, often densely ciliate with white hairs, repand or pinnatifid, 

 3.5-20 cm. long; flowers few, white or rose, 3.5-8 cm. broad; calyx pubescent, its 



