Vor. IL] EVENING-PRIMROSE FAMILY. . 495 
2. Megapterium Fremontii (S. Wats.) Britton. Fremont’s Primrose. 
(Fig. 2600. ) 
OFnothera Fremontit S. Wats. Proc. Am. 
Acad. 8: 587. _ 1873. 
Megapterium Fremontii Britton, Mem. Torr. 
Club, 5: 236. 1894. 
Tufted, stems mostly simple, ascending, 
2/-6’ high, densely appressed-pubescent or 
canescent. Leaves lanceolate to somewhat 
oblanceolate, acuminate at the apex, nar- 
rowed at the base into a slender petiole, en- 
tire or very nearly so, silvery canescent, 
1%4/-3/ long, 2//-4’’ wide; flowers yellow, 
axillary, 1/-2’ broad; calyx-lobes broadly 
lanceolate, acuminate, spreading, the tube 
canescent, very slender, 4-5 times the length 
of the ovary; capsule ovate, canescent, 
broadly winged, rounded at the summit, 
about 8/’’ long and 6/’” wide, short-stalked; 
seeds not tuberculate. 
Kansas to Texas. Summer. 
16. GALPINSIA Britton, Mem. Torr. Club, 5: 236. 1894. 
[SALPINGTA Raimann, in Engler & Prantl, Nat. Pfl. Fam. 3: Abt. 7, 217. 1893. Not 
Salpinga DC. ] 
Perennial caulescent herbs or shrubby plants with much branched or tufted stems. 
Leaves alternate, entire or toothed. Flowers perfect, yellow, axillary. Calyx-tube slender, 
narrowly funnelform, longer than the ovary; calyx-segments narrow, the tips free in the 
bud. Petals 4, spreading. Stamens 8, equal in length; filaments filiform; anthers linear. 
Ovary 4-celled, elongated; united styles filiform; stigma disk-like, entire. Capsules elon- 
gated, narrowed at the base, more or less curved. Seeds sometimes tuberculate. [Anagram 
of Salpingia.] 
About 4 species, in the southern United States and Mexico. 
1. Galpinsia Hartwegi (Benth.) Britton. Hart- 
weg’s Primrose. (Fig. 2601.) 
OEnothera Hartwegi Benth. Pl. Hartw. 5. 1839. 
OEnothera lavendulaefolia T. & G. Fl. N. A. 1: 501. 1840. 
Galpinsia Hartwegi Britton, Mem. Torr. Club, 5: 236. 1894. 
Somewhat woody, canescent or pubescent, much branched, 
the branches decumbent or ascending, 6’-15’ long. Leaves 
linear-oblong or lanceolate, obtuse or obtusish at the apex, 
mostly rounded at the base, and sessile, 6-2’ long, 114//-3/” 
wide, entire or slightly repand-denticulate; flowers axillary, 
yellow, 9//-2’ broad; calyx-lobes linear-lanceolate, acuminate, 
reflexed-spreading, the tube dilated above, many times longer 
than the ovary; petals rhombic-obovate, acutish; stigma dis- 
coid; capsule nearly sessile, narrowly cylindric, canescent, 
6//-12’’ long, 1/’-2’’ thick; seeds obscurely tuberculate. 
_ Prairies, Nebraska and Colorado to Texas and northern Mex- 
ico. May-Sept. 
17. MERIOLIX Raf, Am. Month. Mag. 4: 192. 1818. 
Biennial or perennial herbs with branched stems which sometimes become shrubby. 
Leaves alternate, narrow, entire or sharply serrate. Flowers perfect, regular, axillary, yellow. 
Calyx-tube funnelform, shorter than the ovary; calyx-segments narrow, keeled on the back, 
the tips free in the bud. Petals 4, often blotched at the base. Stamens 8, equal in length; 
filaments filiform; anthers narrow. Ovary 4-celled, 4-angled; stigma disk-like, 4-toothed; 
ovules numerous, Capsules linear, 4-angled, 4-celled, sessile. Seeds longitudinally grooved. 
A monotypic genus of temperate North America. 
