456 
BOTANY. 
CASTILLEIA. 
Chiefly from the revision of the genus l>y Dr. Gn w in the Amn: Jour, of Scknrr, Voi. XXXITI, \^\^. 
335-339, (186-2.) ^Mexican species ouiittetl. 
§ 1. HEMICHEOMAor EUCASTILLEIA. Calyx (ot't.-n inctirvoil) (U}ei.ly eh-l't anteriorly, sliohtly 
bifid hehind, nsually 4-toothed. (Root pi^renni.il.) 
1. C. i.TXAUiiEFOLiA, Benth. Leaves long. liu. ar : ealyx-ioi th snhiilate; uulea ehm-aicd. unu-h ex- 
serted ; nsnally ghahrons. See page 228. 
2. C. LAXA, Gray. Cinereous-pnheseeut ; stems sirhdiffuse, branched ; leaves thin, linear-lanceolate, 
2' long, 3" wide, entire, not dilated at base ; the floral shorter than the calyx, red above ; flowers few, 
crowded, short-pedicelled ; calyx very thin, colored, 1' long, teeth short and obtuse ; galea broad, slightly 
falcate, 6-8" longer than the calyx, lobes of the lip very short, obtuse. — Arizona, (1490 Wright.) 
§ 2. EUCHROilA. Calyx cleft both before and behind, the segments entire, emarginatc or bifid. 
* Root annual or biennial, 
(fl.) Leaves entire. 
3. C. AFFlNis, H. & A. Flowers more or less pedicelled ; calyx-segments narrow ; galea elongated. 
See page 228. 
4. C. ixmvisA, Eng. Pilose-hispid ; canline leaves linear-lanceolate, mostly rounded at base, the 
floral ones obovatc-dilated, rarely somewhat lobed ; flowers sessile ; calyx-segments broad, usually emar- 
ginatc ; galea short and shortly exserted. — W. Texas. 
(&.) Leaves laciniately cleft. 
5. C. cocciXKA, Spreng. From N. England, Canada and the Saskatchewan to the upper districts of 
the Southern States and Texas. 
* * Root perennial. 
(a.) Floral leaves more or less dilated above and colored. 
(1.) Villous-pnbescent, or glabrous below, the pubescence toward the top of the stem spreading-pilose 
or hirsute, more usually viscid. 
6. C. rvRTIFLORA, Bong. tTsually low, pilose or hirsute: h'aves mostly trilid or jiinuati'ly laciniate, 
the floral ones red or yellowish. See page 229. 
7. C. TAixiDA, Kth. Taller, often glabrous or glabrate below ; leaves linear to ovate-lanceolate, 
mostly entire; floral leaves whitish or red. See page 229. 
8. C. i.ATiioi.iA, H. & A. Yiscid-hirsuto throughout, loosely branched ; leaves short, obovate, ver^- 
obtuse, mostly entire, the floral ones dilated at the apex, 3-5-lobed, red; calyx-segments l)road, 2-lol)ed 
or emarginate ; corolla small. — California. 
(2.) Tomcntose, or with the pubescence upon the stem soft and entanged; canline leaves linear, 
entire or trifid. 
(2".) Hoary ; calyx-segments dilated, subcntire. 
9. C. FOTJOT.osA, H. & A. Floccose-tomentose, the hairs very much branched; stems suffruticose, 
with the older leaves sometimes becoming glabrous; galea slightly exserted beyond the spatulate-oblong 
and usually retuse calyx-segments. — California. 
10. C. i.AXATA, Gray, llerbaeeons ; white-woolly witli an appressed Webby tomentum ; flowers nearly 
as in the last but larger. — W. Texas, Xew ^lexico and X^orthern Mexico. 
(2".) Criiereons-puherulent or ' subtomentose ; calyx-segments mo«t usually bifid; galea exserted; 
lea\ ( - - ^n. ;ii!ie-> glalu'ous above. 
11. ( '. IN rKiiRA, Gray. Stem loosely tomentnse ; leaves (usu.ally slightly tomentose) all entire, or the 
tloral ones somewhat lobeil, rarely trilid; ilowers II' long, the galea larger (6-8" long) and the lip shorter 
than in the n.'xf : calyx H-12" long, the lobes lanee(datc.— Colorado to X. Texas, Xew Mexico and Arizona. 
12. C, ri i;i'T i!K A, Don. Stem a little tomentose or cinereous; leaves puberuleut or glabrate^ the 
upper ones usually entire and the tloral ones trifid or laciniate; flowers 1' long, the lip 2-24" long, not 
half the length of the galea. — Arkansas, Tex.as, and E. Xew Mexico. 
13. C. FLAVA, S. Watson. Villons-pubescent. puberulent al>ove ; leaves woolly pubescent, the floral 
ones deeply 3-cleft, yellow ; galea 4" long, exserted ; lip very short. See page 230. 
(fr.) Leaves niustly 3-5-cleft with linear lobes, the floral ones not dilated nor colored ; calyx equally 
cleft or more deeply cleft in front, the segments deeply bifid; corolla-lip more trisaccate-carinate 
than in tlie preceding, the lobes half a.s long as the galea ; low, subvillous or auhcinereous. 
