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California Art & Nature 



73 



BOTANY OF SOUTHERN 

 CALIFORNIA- 



FLOWERIN'G PLANTS. 



Ph;enoganions plants, bearing true fl vhaving 

 stamens and pistils), and producing seeds which 

 contain an embryo. 



Class I.— Dicotyledo?«8. 



Exogenous plants. Stems coiisi<«ting nf a pith 

 in the center, of bark on the outside, and these 

 separated by one or more layers of fibronsor 

 woody tissue, which, when the stem lives from 

 year to year, increases by the addition of new 

 layers to the outside next to the bark. Kmbryo 

 usually with 2 opposite cotyledons, or rarely 

 with several ia a whorl. 



SJUBCL.VSS I. — -ANGIOSPEBM*. 



Pistil consisting of a closed ovary whiih con- 

 tains the ovulesiind forms the fr. ; cotyledons 2. 



DiVISlOM I.— POLYI'ETAL^. 



Petals distinct, or nearly so (sometimes absent). 

 RANUNCULACEAJE. 

 Crowfoot family: herbs or woody vines with 

 colorless usually an id juice, polypetwlus, or 

 apetalus with \he sepals often colored and peta- 

 luid; sepals, petals, stamens * pistils all distinct; 

 short: seed anatropous, embryo minute in firm 

 fie.-hy albumen: stipules none. 



Genus CLBMATIS LinnaeOM. 



Virgin's Bower: sepals petaloid, colored, val- 

 vate in the bud; pistils numerous; akenes many 

 'n a head; leaves opposite. 



§. — Petals 0; sepals 4. styles becoming long 

 feathery awns in fr. 

 CLEMATIS LIQUSTICIFOLIA Nutt«ll. 



Nearly glabrous, stems sometimes 30 ft. long, 

 leaves 5-foliate, leaflets broadly ovate to lanceo- 

 late, l'/i-3 inches long, acute or acuminate, 3- 

 lobed * coarsely toothed, rarely entire or 3 part- 

 ed, fl dioecious, paniculate, sepals thin, silky, w, 

 •i-6 lines long: akenes pubescent, tails 1 -2 inches 

 long, o-ra n j Abundant along water courses 

 in the foothills and mt up to 6000 ft. be 52. da 1 

 V. CALIPORNICA Wat. 



Leaves silky-tomentose beneath, often small, 

 z s— the Sacramento he 52 

 CLEMATIS LASIANTHA Nutt. 



Silky-tomentose, stems stout, elongated; fl di 

 oecious, solitary, on rather stout 1-2-bracted ped- 

 uncles; sepals obtuse, thickish, 6-10 lines long; 

 akenes pubescent. b— Plumas Co. 

 CLEMATIS PAUCIFLORA Nuttall. 



Silky-pubescent; stem rather slender, short- 

 jointed; leaves short .tfascicled; leaflets 3-5, only 

 3-9 lines long, cuneate-obovate to cordate, most- 

 ly 3-toothed or 4-lobed; fl solitary or few a pani- 

 cled, on slender pedicels: sepals thin, 4-6 lines 

 long: akenes glabrous. sj he!>2 



Genua THALICTRUM Tovrnefort. 



Meadow me: sepals 4-7, greejiish or petaloid: 

 imbricated in tlie bud, petals 0, akenes 4-15 in a 

 head, tipped by the stigma or short style, groved , 

 ribbed, or inflated; ovule suspended; fl in co- 

 rymbs or panicles; leaves alternate. 2-:>-ternately 

 compound; leaflets stalked. f> 

 §1.— fl dioecious; anthers linear, acute or acumi- 

 nate. 

 THALICTRUM POLYCARPUM S. Wat. 



Rather stout, 2-3 ft high, glabrous: leaves 

 with phort petiolesor the npper ses-ile; leaflets 

 variible, %-\ inch long; lobes acuti>h to acumi- 

 UHte: panicle narrow, often small, the s*amina:e 

 usually crowdel on sh.)rt pedicels: antherd 

 acute, on very slender filaments: fr in dense 

 heads, compressed, broadly oblong-obovHte or 

 obovate, abruptly acute, 2'4-3 lines long: seed 

 linear, terete, nearly >^ inch 1 ng j-i) hef4 da 1 

 THALICTRUM OCCIDENTALE A. Gray 



Of similar habit as T. polycarpum, leaflets 

 rather larger, panicles more .--lender and open, 

 thestaniii ate very d fi'ase »iih slender elorgii- 

 ted pedicels, styles mo«"e attenuate: fr 1-6 in 

 each head, n<i!rowly oblong (.3-4 lines long) and 

 narrowed at each end : seed nearly >4 inch long, 

 b-w Parish 1484 b mts, he 54 



§2.— fl nsnally perfect; anthers small, elliptic- 

 oblong, obtuse. 

 THALICTRUM SPARSIFLORUM Turci.. 



Slender, glabrous, 1-3 ft high, leaves sessile 

 or nearly so; leaflets >4-l>4 inch long, with ob- 

 tuse often mucronate lobes: panicle loosely 

 few-fiowereU; pedicels elongated: fr-ing heads 

 nodding, the large divcricate akenes .strongly 

 compressed, semi-obovate. shortly pedicellate, 

 slightly nerved. b-Alaska, Siberia, Utah, Col. 

 Genua MYOSLRL'S Llnnaenii. 



Sepals 5, spurred at the base; petals 5, 

 linear, on a slender claw, with a pit at its 

 summit; stamens 5-20; akenes very 

 numerous, crowded on a long and 

 slender spike-like receptacle; seed sus- 

 pended. Very small herbs, with a tuft 

 of linear or spatulate entire radical leaves, 

 and solitary flowers on simple scapes. @ 



MYOSURUS MINIMUS Linn. 



M. shortii Rafluei«)ue in Sill J 1:379. 



Receptacle in fruit slender, 1-2 inches 

 long: akenes blunt. Widely distributed 

 in Europe, Asia, Au.stralia and America ; 

 apparently indigenous in California. 

 Var. APUS Greene. Mesas, s. 

 Var FILIFORMIS Greene. Mesas, s. 

 MYOSURUS APETALUS Gay. 



M ariitatus Bth [vi-it G Torr cl blS 21. 



