Htmizonia. COMPOSITE. ggc 



beak ; aisk-akenes obscurely hairy, their pappus of 4 or 5 lanceolate firm-chaffv 

 scales tapering into stout rough awns, and of as many intermediate short truncate 



Tt^t:t^. i^, ^"- ^'■''- ^^- '''■ ^--'-'^ ^-^^'«' ^"^^- ^'<^^^^- 



ti^^^^l ^iSI^'f^:-^' ''•^''''' '-' ^^^^^"- «-^^ ' - ' ^^- !-«• «o- of 



^ -K msk-skaped or saucer-shaped short-stalked gland terminating the fascicled leaves 

 . and bracts : ray-ahenes not apiculate at either end, the terminal areola depressed 

 the surface smooth and even : flowers apparently white. 



13. H. Fremontii, Gray. A span high, with ascending branches, sli-htly hir- 

 sute or hispid: leaves narrowly linear, roughish : heads several-bracted," terminal 

 ancl axillary, short-peduncled or nearly sessile, campanulate : rays 5 to 7, 3-parted 

 tl^ir tube very short; disk-flowers about 20: chaff of the receptacle forming a 

 12- 14-toothed cup : pappus of disk-akenes 10 chaffy scales, at least the alternate 

 ones longer and siibulate-awned, not longer than the -A^^u^. — Calycadenia Fremontii, 

 Gray, Lot. Mex. Eound. 100. 



California, Fremont. Tiie particular station unknown. 

 _ 14. H. pauciflora, Gray. About a foot high, with filiform diver^ino- often 

 zigzag branches, minutely scabrous, sparingly hispid, especially along the mardns 

 ot the lower portion of the hnear-filiform leaves : heads distant and sessile in'^the 

 axiJs along the branches as well as terminal, cylindrical: ray solitary, 3-parted down 

 to Its short tube; disk-flowers 3 combine.l into a 3-toothed tubular cup, their pappus 

 ot 5 subulate-awned and 5 small intermediate truncate chaff-y scales. — Calycadenia 

 pauciflora, Gray, 1. c. -^ ./ 



sin^ce^Sen mef with!'^ '' *^'' '^'*'°" unknown. Both species were collected in 1846, and have not 



* * Virgate; the stem or branches strict: heads mostly in the axih, either solitary or 

 clustered: rays deeply Uobed or sometimes ?> parted ; their akenes ivith truncate 

 summit slightly if at all apiculate : disk-corollas narroxo and long, 5-toothed • 

 flowers m some and perhaps all the species open only through evening and 



^ Soft-pnhescent, not at all hispid: heads sometohat p>aniculate or in short-jmluncled 

 axillary clusters. 



.n/!;^i"'°?'®' ^^'T ^^""^^^ ^ ^'^* ^"Sli, grayish with a soft fine pubescence, 

 no even hirsute except on the margins of the uppermost leaves and bActs : these 

 tipped with a tack-shaped or saucer-shaped and short-stalked gland, or sparsely 



wi h Z \ w 1 '^^'''^' l^'Tf I^^^^^^ '^^' 3 ^° -5' ^^'''^^^ equally 3-parted and 

 with short but slender tube; disk-flowers 5 to 10 : chaff" of the receptacle united 

 into a b-8-toothed cup: ray-akenes somewhat rugose, and the broad terminal 

 areola rather protuberant : pappus in the disk of 5 or 6 subulate-awned scales nearly 

 twice the length of the akenes, and of one or two additional short and blunt scales. 

 — H.angmtijolia, Diu-and, PI. Herm., Pacif. R Eep. iii. 10, not of DC. Caly- 

 cadenia mollis. Gray, Proc. Am. Acad. vii. 360. 

 ^rS?*'^''^^'' *^^"P°'^ ^"'l ^''esno Counties ; very common at A\Tiite and Ilatoli's, Bolaiukr, 



-f--f- Glabrous and smooth, or some of the lorrer leaves slightly and sparsely hispid: 

 heads scattered, solitary in the axils and ternninal. 

 10. H. triincata, Gray. Slender, a foot or two high; the virgate stem some- 

 times paniculately branched above : leaves very narrowly linear, the short u])per- 

 most and the bracts tipped Avith a very large and almost sessile saucer-shajioil 

 gland: flowers yellow; rays 5 to 8, 3-cleft, with very short tube; disk-fluwers 10 



