6o6 



ONAGRACEAE. 



Vol. II. 



2. Megapterium Fremontii (S. Wats.) Britton. 



Fig. 3063. 



Fremont's Primrose. 



Oenothera Fremontii 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 linear-lanceolate to some- 

 what oblanceolate, acuminate at the apex, 

 narrowed at the base into a slender petiole, 

 entire or very nearly so, silvery canescent, 

 li'-3' long, 2"-4" wide; flowers 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. 



Plains, Kansas to Texas. Summer. 



Megapterium oklahomense Nor- 

 ton. Oklahoma Primrose. 

 Fig. 3064. 



Megapterium oklahomense Norton, Ann. Rep. 

 Mo, Bot. Gard. g: 153. 1898. 



Glabrous throughout, even when young; 

 stems decumbent or ascending, 1° long or 

 less ; leaves firm in texture, lanceolate, 

 acuminate at the apex, narrowed at the 

 base, remotely toothed or entire-margined, 

 2i'-4' long; flowers ii'-2' broad; calyx- 

 lobes linear-lanceolate, purple-spotted ; cap- 

 sules oblong, short-stalked, about i' long, 

 its wings 3"-4" wide. 



Kansas and Oklahoma. Summer. 



16. GALPINSIA Britton, ]\Iem. Torr. Club 5: 236. 1894. 



[Salpingia 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-celIed, elongated ; united styles filiform ; stigma disk-like, entire. Capsules elon- 

 gated, narrowed at tjie base, more or less curved. Seeds sometimes tuberculate. [Anagram 

 of Salpingia.] 



About 4 species, in the southern United States and Mexico. Type species : Galpinsia Hartwegi 

 (Benth.) Britton. 



Canescent or appressed-pubescent, low ; leaves narrow. 

 Hirsute-pubescent or tomentose ; leaves broa<i. 



1. G.lavendulaefoUa. 



2, G. interior. 



