APPE^IDIX. 
461 
9. N. DICHOTOMA, Eulz & Piiv, Piibesceiice more or less viscid ; corolla scarcely esceediuj? the 
calyx ; capsule rather short-oblong ; seeds J-i" long, oval-oblon<r, coarsely pitted.— Mexico to Bolivia. 
Var. ANGUSTIKOLIA, Gray. Leaves linear-lanceolate. — New Mexico and S. Colorado. 
10. N. LATIFOLIA, Gray. Leaves all slender-pet ioled ; seeds nearly smooth.— S. W. Mexico. 
" * " Perennial or perhaps annnal, with a somewhat woody hase, and a very soft pubescence ; 
leaves not exceeding i' in length ; seeds very small. Mexican. 
IL N. KUPICOLA, Bonpl., and 12. N. origanifolia, HBK. 
* * * * Perennial, somewhat shrubby at base; pubescence hispid or silky-canescent ; leu\es and 
flowers larger. 
13. N. niRSUTA, Mart. & Gal. S. W. Mexico. 
14. N. SERICEA, Willd. Mexico. 
15. N. LoBBil, Gray. Pubescent with a webby wool; leaver laiKutil.ti.', aftcniuih- lo a scarcely 
petioled base; flowers crowded in sessile axillary and terminal clii-t<Ts: s(}i.ils mu/inv. ii<(t dilattd 
upward. — Sierras of California. 
MERTENSIA. 
Eevised by Dr. Gray in Amer. Jour, of Science, Vol. XXXIII, p. 3.'?9, (1802.) 
$ 1. Filaments slender, much longer than the anthers ; corolhi-tubc sf'\ er,'il times longer than the 
deeply 5-cleft calyx, the limb very slightly lobed, the throat witlmiit lulds. 
1. M. ViRGixiCA, DC. From W. New York to Wisconsin and Iowa and southward to S. Carolina 
and Tennessee. Arctic coast, (!\T. Dnimmondii, Don.) 
$ 2. Filaments more or less narrower and longer than the anthers ; limb of the corolla lobed. 
2. M. MARITIMA, Don. Corolla-tube shorter than the limb, about equaling the sub-5-partcd calyx, 
the folds conspicuous. — From Greenland to Behring Strait and southward on the coast to Cape Cod and 
Washington Territory. N. Europe and Asia ; Japan. 
$ 3. Filaments more dilated, as broad as the anthers or broader, and more or less shorter ; corolla- 
limb .'j-cleffc. 
* Calyx not cleft below the middle. 
3 M. Fexdleri, Gray. Stem and lower side of the leaves smooth, the upper surface and the pedi- 
cels finely appressed hispid ; cauline leaves oblong-lanceolate ; racemes few-flowered : corolla-tube 
scarcely longer than the limb and the broad-lanceolate lobes of the hirsute calyx, with a hairy ring on 
the inside above the base ; disk more or less 2-lobed.— New Mexico, (Fendler.) 
* * Calyx 5-parted or sometimes deejily 5-cleft. 
(a.) Corolla-tube 2-3 times longer than the upper dilated portion, (the limb.) 
4. M. OBLONGIFOLIA, DC. Low; cauline leaves oblong or spatnlate-lanceolate, mostly obtnse; 
calyx-segments lanceolate or linear, acute, 2-3 times shorter than the corolla-tube, which is naked 
within. See page 238. 
(6.) CoroUa-tnbe not more than a half longer than the limb. 
(1.) Tall, 1-^^ high ; cauline leaves ovate or ovate-lanceolate, very sharply acuminate or acute, 
costate- veined ; corolla i' long or a little more. 
5. M. PANICULATA, Don. Hirsute, rough ish or gla'ii;i(<- ; ralyx-.'-( ;;iii. ii! s lanctdi.iti: or laiici oiatr- 
linear, acute, hirsute or hispid-ciliate, slightly or a hall' short. r lhau the ((.loHa-tulK'. v.Iiidi i.s sj.;iringly 
hairy within. See page 23^. 
6. M. SiBlRiCA, Don. GlauccHC.'iit. subpubcsffiit or glabrous: obloDg- 
lincar, ciliolate, 2--4 times slu)rter tiiau the c(»roila-t ii^. v. ]n< ]i . glabrons 
within.— Thes3 species .are probably not disitiuct. Sf^ 
(2.) Low; canliue leaves obtuse or arut;-;',. . • 
7. M. ALPINA, Don. A span to nearly 1° high, .ulahions (.r hir uice- 
olate or the uppermost oblong-ovate, r.ather small and mostly acni r <.h]ong- 
lanceolate and obtusish, or linear-lniiceolate nTid rf'^ -. ri';:,f. . a ; '"iln-tube, 
which equals the limb and is usuu'ly liaii y v, ii; of 
Colorado. 
8. M. BREVISTYLA, S. Watson. More hirsute ; leaves obtuse, corolla-tube usually shorter than the 
limh, naked within; anthers wholly included in the tube ; style very sliort.-Sce page 239. 
