EL^TINACE/E. S3 



6. LEWISIA, Puroh. 

 !• It rediviva, Pnrah. Scapes with a whorl of scarious bracta. 

 2. L. brachycalyx, Engelm. Scapes 2-bracted 'at base: sepals 4. 



elatinacej:. 



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



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



Erect, glandnlar-pubescent: parts of the flower in S's... ». 2 



ELATINE, Linnxns. 



1. E. Americana, Arnott. Seeds pitted in 9 to 10 lines, i line long. 



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



3. E. Californica. Flowers not sessile: seeds much cnrvecL stamens 6 to &. 



BEBGIA, Linnsns. 

 1. B. Texana, Senbert. Leaves serrulate: flowers fasciclad. 



HTPERICACEJE. 



HTPEBICTTM, Linnsns. 



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



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



1. H. formosTim, HBK. var. Soouleri, Coulter. Flowers 6 lines broad. Wet ground. 



2. H. conciTiTninri) Bentb. Leaves acute: flowers an inch broad. Dry ground. 



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

 gronnd. 



MALVACEJG. 



Column of stamens bearing anthers at the 'jop-. carpels in a ring around the axis. 



Calyi-bracts 2 or 3, united below: an evergiuen 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 tomeutos» (except in sp. 6 & 7) 4 



Calyx-bracts 1 or 2, slender: leaves 1-sided: flo—ers yellowish 6 



Column of stamens naked at top, 6-toothe(> : carpels forming a many-seeded capsnle, 



Oalyx-bracts many 6 



