APPENDIX. 467 



at first loosely tomentose-pubesoeiit or villous ; corolla 11ml) 1^' iu diiuneter ; lobes broad, often sub-erose 

 anthers linear-oblong, included ; cells 20-ovuled or more.— California. 



19. G. PUNGENS, Benth. Visoid-pub ascent, piiberulent or glabrate leaves mostly suberect or strict ; 

 corolla-lobes usually narrower and but half as long; anthers in the throat, oblong ; cells 8-10-ovuled.— 

 Very variable. See page 265. 



Series II. Leaves alternate and pinnately divided, lobed, or toothed, rarely entire and the lowest oc- 

 casionally opposite.. Filaments slender. Seed-coat developing mucilage and spiricles, (excepting 

 Nos. 44, 47, 48, 57 and 58.) H 6-12. 



§ 6. KAVAEEETIA, Gray. Flowers in densely leafy-bracteate heads ; lobes of the calyx and of the 

 mostly multifid or nearly palmate bracts rigid and acerose-puugent or spinulose, sometimes lacini- 

 ate or unequal ; corolla slender funnelform, lobes rather small, oblong ; stamens inserted below the 

 throat ; anthers short ; ovary sometimes dimerous. Low branching usually viscid annuals ; 

 leaves 1-2-pinnately cleft or incised, the lobes usually subulate, pungent ; seed-spiricles shorter 

 than usual. 



* Some of the leaves and bracts more than once pinnatifld ; corolla violet or whitish ; stamens 

 included, commonly unequal ; cells 8-12-OYuled ; viscid and unpleasantly scented. 



20. G. SQUAREOSA, H. & A. Stoutish, rigid, 1° or less high ; upper leaves and bracts spinescent : 

 corolla-tube hardly equaling the mostly entire calyx-lobes. — California, Oregon. 



* ' Leaves somewhat 2-pinnatifid ; stamens exserted ; cells 1-4-ovuled. 



21. G. COTUL^FOLIA, Stcud. Eigid, 5-12' high, pubescent or glabrate below, minutely glandular 

 above ; leaves mostly bipinnately parted, the upper ones spiuescent-lobed ; corolla blue or whitish, the 

 tube hardly exceeding the sparsely villous calyx-lobe ; cells (often but two) 1- or rarely 2-ovuled. — Cali- 

 fornia. 



22. G. INTBETBXTA, Steud. Stem white-pubescent, 1-10' high; leaves glabrous, except at base; 

 base of bracts and the calyx-tube densely white-hairy ; corolla white, 4" long ; cells 3-4-ovuled and 

 seeded. See page 266. 



23. G. MINIMA, Gray. Smaller, 1' high, white-pubescent ; leaves and bracts glabrous ; calyx white- 

 villous in the sinuses; corolla white, 1^" long, shorter than the calyx-lobes; cells 1-ovuled. See page 266. 



24. G. Bebweei, Gray. 1-6' high, glandular-puberulent throughout, without white hairs ; heads less 

 dense ; corolla yellow, 3-4" long, equaling the entire calyx-lobes ; cells 1-2-ovuled. See page 266. 



25. G. LBUCOCBPHALA, Gray. Slender, 3-6' high ; top of the stem and of the thin calyx-tube white- 

 hairy, otherwise glabrous ; leaves soft, with filiform usually entire lobes, those of the bracts barely pun- 

 gent ; head dense ; corolla white, 4" long, exceeding the calyx ; stamens exserted ; cells 2-ovuled. — Sacra- 

 mento Basin. 



* * * Leaves and bracts 1-pinnatifid or incised, or subentire ; calyx-lobes entire, except in G. visci- 

 dula ; stamens more or less exserted ; corolla purple, rarely white or yellowish. 



(a.) Very slender, erect, 3-10" high ; branches divergent, subnaked ; leaves filiform or acicular, few- 

 lobed ; inner bracts subpalmately parted. 



26. G. FIUCAULIS, Torr. Very minutely glandular above ; branches effasely panicled ; leaves sparse, 

 subsetaceous ; flowers in small rather naked heads, 3" long,' the slender tube long exceeding the lanceo- 

 late-subulate scarcely pungent calyx-lobes ; cells 1- (rarely 2-?) ovuled.— Central California. 



27. G. DiVAEiCATA, Torr. Difi"use or very open, somewhat visoidly pubescent above ; leaf-lobes 

 subulate-filiform, the upper leaves and bracts more rigid and pungent ; corolla 3-5" long, the more fun- 

 nelform tube slightly exceeding the setaceous-subulate pungent calyx-lobes; cells 5-7-ovuled. — Central 

 California. 



(J.) Stouter, viscid, erect, 2-8' high ; leaves rigid, the bracts at least dilated at base, often carti- 

 laginous, the lobes spinescent; heads dense. 



28. G. visciDULA, Gray. Cauliue leaves mostly slender, with setaceous subulate lobes, the bracts 

 broader and more spiny, the teeth ascending ; corolla 4-6" long, twice exceeding the lanceolate-subulate 

 and sometimes incised calyx-lobes ; cells 1-4-ovuled. — California. 



29. G. ATKACxyLOiDBS, Steud. Very viscid-puberulent and rigid ; leaflets divaricate and subulate- 

 spiny, seldom longer than the breadth of the rachis ; corolla about twice longer than subulate calyx- 

 lobes. — S. California. 



(c.) Depressed, scarcely viscid; the rigid leaves (6-9" long) more or less dilated upward, the teeth 

 and the calyx-lobes tipped with long bristles ; flowers scarcely clustered, not capitate. 



30. G. SBTOSissiMA, Gray. Learves narrowly cuneate ; corolla 6-9" long, much exserted ; anthers 

 oblong; capsule oblong ; cells 6-10-ovuled, (Gray.)— An ovary from Dr. Newberrj 's original specimens 

 has the cells 6-ovuled. Dr. Palmer's mature plants have the cells 2-3 seeded. See page 267. 



