588 PROCEEDINGS OF THE AMERICAN ACADEMY 



woody at base ; pubescence canescent, short and silky, closely ap- 

 pressed, sometimes dense or wholly wanting ; leaves thick, oval to 

 linear, mostly narrowly lanceolate, 2-5' long, acuminate, attenuate 

 to a usually slender petiole, entire or repand-denticulate ; calyx-tube 

 rather thick, 2-5' long, the segments often spotted with purple, the 

 tips free in the bud and slender ; petals 1 - 2V long, broad, with usually 

 a short abrupt acumination ; capsules very broadly winged, 1 — 3' 

 long, nearly as wide, emarginate at the summit, shortly pedicelled, 

 subcompressed, coriaceous-membranous, mostly glabrous ; seeds 2" 

 long, strongly tuberculate, with a conspicuous crested border surround- 

 ing the upper end and extending partially down the ventral side in a 

 double line. — From Missouri to Texas. 



27. QE. macrosceles, Gray. Perennial (or biennial?), gla- 

 brous ; stems elongated ; radical leaves spatulate to lanceolate, 

 7 — 12' long, long-attenuate at base, acute, the cauline subsessile, 

 oblong to lanceolate, all strigosely ciliate, entire ; calyx-tube slender, 

 4-5' long, the stout tips of the segments free in the bud ; petals 

 broadly obcordate, 1 - IV long; fruit unknown; ovary 1' long, linear, 

 smooth, apparently with rudimentary wings. — This species from 

 Northern Mexico, of Gregg's collection, was referred by Dr. Gray to 

 the subsection Onagra ; more perfect material is needed before its 

 position can be determined. 



§ 2. - TARAXIA, Nutt. (Including § Primulopsis, Torr. & Gray.) 

 Stigma capitate ; calyx-tube filiform, funnelform at the summit, 

 marcescent ; anthers oval or oblong, attached near the middle, the 

 petaline filaments shorter (nearly equal in (E. ovata) ; capsule 

 sessile, ovate or narrowly conical to linear, membranous, tetragonal 

 (winged above in (E. graciliflorci) ; seeds ascending, in two rows 

 in each cell, oblong, terete. Acaulescent or nearly so, the yellow 

 flowers erect in the bud, tips of the calyx not free. 



28. CE. breviflora, Torr. & Gray. Perennial (or biennial), 

 acaulescent, subpubescent or nearly glabrous ; leaves lanceolate, 2-6' 

 long, petioled, acuminate, deeply sinuate-pinnatifid, the numerous very 

 unequal segments acute or acutish, toothed or entire ; calyx-tube 3 — 6" 

 long; petals becoming rose-color, 3" long ; capsule 6- 10" long, 1J-2" 

 broad below and attenuate above into the persistent calyx-tube, subte- 

 tragonal, subsulcate, and somewhat curved ; seeds numerous, nearly 1\" 

 long, very minutely longitudinally striate. — Southern Wyoming, Colo- 

 rado, and Eastern Utah. 



