452 
BOTANY. 
' *■ Corolla long-cylindric, mostly scarlet, lobes short, the upper erect, siibincurved, the lower spread- 
ing, 3-parted. 
5. P. TF.RXATrs, Torr. Shrubby, glabrous ; leaves linear-lanceolate, verticillate in threes, denticu- 
late ; sepals lauce-ovate ; corolla 1' long ; sterile iilament strongly bearded throughout. 
6. P. CORYMBOSUS, Benth. Decumbent ; leaves oblong, narrow at base, obtuse, subentire, pubes- 
cent ; cyme corymbose ; sepals linear-lanceolate ; sterile filament glabrous or sparingly bearded. 
7. P. CORDiFOLius, Benth. Sarmoutose or climbing, prxiinose-puberulont or glabrate ; leaves ovate 
and obtuse at base or subcordate, often denticulate or dentate ; sepals ovate-lauceolate ; corolla over 1' 
long ; sterile iilament densely bearded. 
^ 3. AMBIGUI, Gray. Bubshrubby ; leaves coriaceous ; inflorescence panicled ; corolla scarlet, di- 
lated above, lips short, the upper suberect, the lower 3-parted, reflexed ; anthers glabrous, reniform, 
cells not dehiscing to the base and not expanding. 
8. P. BACCHARiFOLius, Hook. W. Texas. 
^ 4. ELMIGERA, Eeich. Herbaceous, mostly glabrous ; leaves entire, the cauline sessile, lanceolate 
or linear ; tiowers scarlet, in loose virgate panicles, tubular; anthers glabrous ; cells not dehiscent 
to the apex and not expanding ; sterile filament naked. 
9. P. BAUBATUS, Nutt. Tall ; flowers numerous, strongly bilabiate, lower lip deflexod and usually 
bearded ; anther-cells widely divaricate. — Mexico. Var. Tourevi, Gray. Throat of the corolla less 
In ai ded HI- naked, the lips (especially the up^ier) a little longer. — Colorado to Now Mexico. 
v'l 5. Bl'KCIOSI, Gray. Herl)s, glabrous, (except P. Frdmontn ;) leaves entire, the cauline sessile ; 
tiowers blue to purple or violet, in a thyrsoid panicle, broad ventricose above, slightly 2-lipped with 
equally spreading rounded lobes ; anthers hairy or ghibrous, tlie divaricate cells not dehiscent to 
the apex and not expanding. 
10. P. ( ir.ABER, Pursh. Leaves glaucous, lanceolate or ovate-lanceolate ; sepals broad-ovate, blunt 
or more or less acuminate, the margin submombranous ; sterile filament bearded or glabrous. See 
page 217. 
11. P. CYAXAXTiiT'.s, Hook. Lcavcs cordate, ovate, acuminate ; thyrse short and dense. See 
page 217. n 
12. P. STRTOTT's, Benth. Subglaucous, virgatc and sleudcr ; leaves long-linear ; panicle narrow with 
much smaUer llowers ; se])als short, obtuse ; anthei's very hairy. — Wyoming ; little known. 
13. P. FutMOKTi, T. & G. Pruinose-pubenilent ; lower leaves spatulate, the cauline sessile, lance- 
olate ; panicle naked, spicate ; sepals oblong-ovate, acute, membranous-margined ; corolla narrow-funuel- 
form ; anthers and sterile Iilament sparingly bearded. See page 218. 
§ G. GENUINI, Gray. Herb aceous ] corolla only moderately or scarcely bilabiate, the lips or lobes 
usually spreading; anthers glabrous or the valves only ciliate, the cells dehiscent the whole length 
and usually cx])andiiig. 
* Ghabrous and glaucous, (P. aeruleus excf^pted;) leaves entire, coriaceous, the cauline sessile or 
clasping: iulloresccnce thyrsoid, virgate, the peduncles mostly very short, S-several-flowered ; 
Lorolla dilated above, scarcely bilabiate, with flat spreading lobes. 
(rt.) Flowers blue, not 1' long; sterile tilanieut usually dilated above, yellow-bearded. 
14. P. c.i-;RULEt's, Xntt. Very low, usually puberulent above; leaves linear-lanceolate ; sepals lance- 
olate, acuminate, margins eouunoidy ciliolate and membranous. See page 218. 
15. P. Acr.MiNA ri s. Dongl. l.V- high or less ; eauline leaves lanceolate to subcordate, rigid ; thyrse 
elongated; corolla 6-10 ' long; sepals o\ate or lanceolate : capsule very sharply acuminate. Seepage 218. 
If). P. si-d NPif fours. Benth. 1° high or less; caidine leaves narrowly lanceolate; cymes more 
loose and (lowers se. iuid.— Bocky Mts. Referred by Dr. Gray to the last species, but now regarded as 
probably dist inct. 
(/;.) Corolla 1 i long ; upper leaves especially rounded and clasping or perfoliate ; cymelets 2-5-flow- 
ered with no common peduncle; sepals not acuminate; sterile filament with the hooked apex 
shghtly dilated. 
17. P. (u; ANDi I i.oKis. Xntt. 3° liigli ; haves distinct; pedicels short; corolla blue, abruptly in- 
flaT' il : sterile tilanu-nt scarcely bearded. — Wiseoti,--in to Kansas. 
l-^. r. Mi UHAYANrs, Hook. 2-3'-" high ; n])per and floral leaves connately orbicular ; pedicels slen- 
der ; corolla red, gradually dilated ; sterile Iilament glabrous. — E. Texas ; Arkansas, 
(c.) Corolla abont 1' long, red or scarlet ; leaves below oblong, above subovate or lanceolate, clasp- 
ing ; usually tall. 
