APPENDIX. 
447 
2. O. PODOCARPA, Gray. Depressed-csespitose, the caudex ranch divided, 'n liitc- villous, at length 
becoming glabrons; stipules long-aduate to the petiole; leaflets 5-11 pairs, crowded, linear-lanceolate or 
oblong-linear, 2-4" long; peduncles equaling the leaves, 2-flowered ; keel of the bluish (?) conOla short- 
nmcronate; pod oblong-ovate, about 1' long, thin-membranous, subglabrous, very sharply aciiminate, on 
a slender stipe equaling the calyx.— Labrador, Arctic Regions, and in the Rocky Jits, in Lit. 4ir. 
§ 3. CAMPESTEES. Pod coriaceous or chartaceous, not bladderj' or Jjut slightly so, sessile or sub- 
stipitate, septate from the ventral suture to the middle or almost coniidctely, tlie dorsal suture 
rarely somewhat intruded. Acaulesoent; stipules long-aduate ; flowers spicate nr eai)ilate. usually 
many, rarely 2-4 ; pods erect. 
* Leaflets in j)airs. 
(a.) Scapes 2-5-flowered. 
3. O. Uralensis, L., Yar. pumila, Ledeb. Silky-villon.s ; scapes 1-2' long; leallels about 4 pairs, 
3" long; flowers violet-blue, scarcely exceeding the calyx; pod oval-oldong or long-nldong, the ventral 
septum extending to the dorsal suture. — Arctic shores and islands, and in (lie Rocky Mountains to Col- 
orado. 
{!).) Spikes or heads matiy-flowercd. 
4. O. CAMPESTRiS, L. Pod chartaccous, ovate or ovate-oblong, 
tinged with violet, rarely blue ; h^atlets in many pairs, oblong-lanceolati'. not silky-caMcsci'iit. — Aniic 
regions to Labrador, Maine, and in the Rocky Mts. to ('olorado. .See pnge 77. 
5. O. Lambeuti, Pursh. Pod coriaceous, sonictiuu's nearly cartilagiimus, erect , nUlong- ur eliuin.iicil- 
cylindric, over 1' long, 2-3" broad, nearly 2-celled ; scapes G-12' high ; llowers h^I-j Imm. spie;ite. purple, 
violet, ochrolencous or white ; leaflets in many pairs, lanceolate, oliloug, oi- liiu ui . imui \ -si I L \ . as alsn t iio 
calyx; stipules mostly very hirsute or woolly. — From the Saskatchewan to Texas ami Ali xii n, and 
west to the Rocky Mts. and Washington Territory. 
6. O. KAKA, Nutt. Caispitose, much-divided; scapes 2-3' liigli ; leaves very* lou ded, more hoary- 
silky; leaflets 3-4 pairs ; flowers 9-12, capitate, rather large, blue; ]i(id not kin>wu. — li()ck\ Mis. of 
N, Colorado, (Nuttall,) and Montana. 
* * Leaflets mostly somewhat verticillate. 
7. O. SPi.KXDKXS, Doiigl. Silvery silky-villous, 6-12' high ; leaflets :!-t; tojiefher. nsually :,~W" long; 
flowers erect-spreading, blue ; pods ovate, erect.— From Nebraska to l!ear River in Hi itish America and 
west into the Rocky Mts. 
§ 4. MONTAX^E. Pod thinly coriaceous, oblong or cylindrical-elongated, somewhat half-2-celled by 
the impression of the ventral suture, shortly stipitate or nearly sessile. Caulescent or subacaules- 
cent, with scapelike peduncles; upper stipules at least adnate, but only at base : leallets en.wded ; 
flowers bright-blue, spicate or capitate, rather small with a short ( alyx-tuhe. spreadin-r : luids 
usually spreading or deflexed. 
8. O. DEPT.EXA, DC. From the Saskatchewan to the Rocky Mts. and X. Colorado. 
IIORKELIA. 
Witb the following genus Ivesia, as arranged by Dr. Ciiw in Proc. Amci: Acad., Vol. VI. pj). .'>2.-'-.^,32, 
(1866,) but with the addition of several more recent spc eies. 
* Leallets somewhat rounded, or cuneate, dentate an<l incised, 
(rt.) The accessory calyx-segments e(iualing the true ones or nearly conformed to tliem ; cymes with 
subleafy bracts, the alar flowers upon longer pedierl-. 
1. H. Calif(>i;xi< a, Cli. & Scb. Villona-pubescent or souiet lines silky, somewhat viseld above, ]-2 
high; stipules incised or mostly entire; calj-x-lobes laige, triangnlar-lanceolate. the aeressory ones 
ovate-oblong, or sometimes lancccdatc-ovate, occasionally bilid or toothed at the apex ; petals obl(.ng or 
obovate-oblong, shorter than or equaling the calyx. — California. 
(6.) Accessory lobes much smaller than the true oui >. 
2. H. PAHVIFI.ORA, Nutt. Tomeutose; stem leafy ; upper leaflets cuneiform; flowers small, petals 
spatulate. See page 89. 
3. H. CAPITATA, Lindl. Somewhat glabrous, the stem viscid-pubescent toward the top ; upper leaf- 
