ELATINACE^, 33 



6. LEWISIA, Pursh. 

 (. L. rediviva, Pursh. Scales with a whorl of scarious bracts. 

 2. L. brachycaljrx, Engelin. Scapes 2-bractecl at base: sepals 4. 



ELATINACE^. 



Small prostrate aquatics with entire leaves : parts of the flower each 2 to 4 (except in 



sp. No. 3). Sepals obtuse: membranaceous 1 



Erect, glandular-pubescent: parts of the flower in 5's .» 2 



ELATINE, Linnaeus. 



1. E. Araericana, Arnott. Seeds pitted in 9 to 10 lines, J line long. 



2. E. brachysperma, Gray. Seeds pitted in 6 or 7 lines, shorter. 



3. E. Californica. Flowers not sessile: seeds much curved: stamens 6 to 8. 



BERGIA, Linnaeus. 

 1. B. Texana, Seubert. Leaves serrulate: flowers fascicled. 



HYPERICACE^. 



HYPERICUM, Linnaeus. 

 Stamens very numerous: styles 3, long „.,,... 1, 3 



Stamens 15 to 20: styles 3, short: petals included 3 



1. H. formosum, II BK. var. Scouleri, Coulter. Flowers 6 lines broad. Wet ground. 



2. H. concinnum, Benth. Leaves acute: flowers an inch broad. Dry ground. 



3. H. anagalloides, C. Sc S. Leaves 2-6 lines long: flowers 3-4 lines broad. Wet 

 ground. 



MALVACEAE. 



Column of stamens bearing anthers at the top: carpels in a ring around the axis. 



Calyx-bracts 2 or 3, united below: an evergreen ever-blooming shrub ». 1 



Calyx-bracts 3, distinct: flowers axillary, pinkish: leaves 5-7-lobed 3 



Calyx-bracts none: flowers racemose or spicate 3 



Calyx-bracts 1 to 3 or none: densely tomentose (except in srp. 6 & 7) 4 



Calyx-bracts 1 or 2, slender: leaves 1-sided: flowers yeHowish 5 



Column of stamens naked at top, ^-toothed: carpels forming a many-seeded capsule. 



Calyx-bracts many , 6 



