EVENING PRIMROSE FAMILY. Onagraceac. 



A queer little, stunted-looking, desert 

 Sphaerostlgma 

 lortubsa plant, with almost no stem, but with 



(Oenothera} several branches, spreading flat on the 



White ground, stiff, smooth and purplish, with 



Spring crowded clusters of flowers, leaves, and 



pods, mostly at the ends, the whole 

 forming flat clumps, from six to ten inches across. The 

 leaves are smooth, slightly thickish, pale bluish-green and 

 toothless; the buds are erect, and the flowers are over a 

 quarter of an inch across, white, with yellow anthers and a 

 green stigma. The pods are very much twisted and form 

 odd little snarly bunches. 



There are only a few kinds of Chyiisma; the flowers in 

 terminal clusters; the calyx with a more or less funnel- 

 form tube and four lobes; the petals four, not notched; 

 the stamens eight, unequal; the stigma with a round top, 

 the capsule long, membranous, with a stalk. 



A charming desert plant, from a few 



Chyiisma inches to a foot tall, with one or more, 



Chyiisma , 



scapoidea var. pmkish, smooth, rather leafy stems, 



clavaejormis springing from a pretty clump of smooth, 



(Oenothera) bluish-green leaves. The delicate flowers 



are about three-quarters of an inch across 



Ariz., Utah anc ^ f rm a graceful cluster of several or 



many blossoms. The petals are white or 



yellow, often tinted with pink, with some specks of 



maroon at the base, and the sepals are pinkish-yellow; the 



stamens pale yellow; the stigma green; the pods erect. 



There are several kinds of Pachylophus; perennials, 



stemless or nearly so; leaves from the root; calyx downy, 



with a long tube; petals white or pink; stamens eight, with 



threadlike filaments, the alternate ones longer; style 



threadlike; stigma four-cleft; capsule woody. 



This has a few large flowers, three inches 

 white v aing Qr more acrosSf w {th pure-white diaphan- 

 PaThjlTphus ous Petals, fading to pink, and pink calyx- 



marginatus lobes. The buds are erect, hairy and pink, 



(Oenothera) anc } the flowers spring from a cluster of long, 



downy root-leaves, narrowing to slender 

 Summer * ' 



Ariz., Utah, Nev., leaf -stalks, with hairs on the veins and on 

 Col. the toothed and jagged margins, and have 



almost no flower-stalk, but the hairy calyx- 

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