520 ONAGRACEiE. Jcssi^ia. 



9. STENOSIPHON. Sjmch, monog. Onagr. p. 64. 



Tube of the calyx filiform or almost capillary, much prolonged beyond 

 the ovary, recurved or declined after flowering, at length deciduous ; the 

 limb 4-parted, much shorter than the tube. Petals 4, unguiculate, unequal. 

 Stamens 8, erect, the alternate ones a little shorter : filaments capillary : 

 anthers oblong, fixed by the middle. Ovary oval, 1-celled, with 4 sus- 

 pended ovules : style erect, filiform, dilated at the apex : stigma 4-lobed. 

 Fruit (very small) coriaceous and indehiscent, ovate, convex externally, 

 flattish within, about 8-ribbed, 1-seeded. — A tall perennial herb, with virgate 

 branches, and scattered linear-lanceolate sessile acute nerveless entire leaves, 

 gradually reduced to bracts. Flowers (white) sessile, crowded, in long and 

 strict virgate spikes. 



S. rirfia^M."! (Spach ! I.e.) — Gaura linifolia, Nutt. ! in James' account of 

 hong's exped. 2. p. 100 ; Torr. ! in ann. lye. New York, 2. p. 200 ; DC! 

 prodr. 3. 2^- 45. 



On Salt River, Arkansas, Nuttall ! On the upper part of the Canadian, 

 Dr. James ! Texas, Drummond ! — Spikes in fruit sometimes nearly a foot 

 long. Bracis subulate, longer than the ovary, rather persistent. Calyx 

 pubescent; the tube exceedingly slender, 4-5 lines long. Petals rather large 

 in proportion. Ovary tomentose-pubescent. 



Subtribe 4. Jussie^, DC. — Calyx not prolonged beyond the ovary ; the 

 limb persistent. Seeds very numerous, naked. — Leaves opposite or alter- 

 nate. Petals sometimes wanting. Capsules tardily dehiscent. 



10. JUSSI^A. Linn. gen. p. 215 ; Gcertv. fr. t. 31 ; La)yi. ill. t. 280. 



Calyx-tube prismatic or cylindrical, not prolonged beyond the ovary ; the 

 lobes 4-6, persistent. Petals 4-6, spreading. Stamens twice as many as 

 the petals. Ovary either flattish at the apex, or crowned with the conical 

 furrowed base of the style : stigma capitate, 4-6-grooved. Capsule mostly 

 elongated, 4-6-celled, often ribbed, opening between the ribs. Seeds very 

 numerous. — Herbaceous or rarely slightly shrubby plants, growing in 

 marshes. Leaves alternate, mostly entire. Flowers yellow (rarely white) 

 axillary, often bibracteolate. 



1. J. repens (Linn.): perennial, nearly glabrous; stem creeping at the 

 base, ascending ; leaves lanceolate-oblong or oval, mostly obtuse, tapering at 

 the base into a slender petiole ; flowers (large) on long pedicels, nodding 

 before their expansion, with 2 small fleshy bracteoles at the base of the 

 ovary ; calyx, with the summit of the stem, slightly villous when young 

 with viscid hairs ; the lobes 5, lanceolate, acute, shorter than the obovate 

 emarginate petals; stamens 10; capsules cylindrical, slightly attenuate at 

 the base, much shorter than the pedicels. — Linn, ma.nt. p. 381 ; Swartz, obs. 

 p. 172 ; DC. prodr. 3. p. 54 ; W. 6^- Am. prodr. Ind. Or. 1. p. 335, Sfin 



