APPENDIX. 473 



1. L. PAiLiDUM, Miers. See page 275. 



§ 2. Flowers middle-sized but short, tlie corolla 6" long or less, the 4-5 lobes of the rotately expanded 

 limb longer than the tube. Glabrous with fleshy leaves. 



2. L. Carolinianum, Walt. From S. Carolina to the Eio Grande. Filaments very densely tomen- 

 tose-bearded above the base. 



§ 3. Flowers smaller, the corolla 2-6" long and the lobes (usually much) shorter than the tube. 



* Calyx deeply 5-oleft, the lobes equaling the tube and about half as long as the shortly 5-lobed nar- 

 row corolla ; pedicels mostly none or very short. Puberulent, spiny. 



3. L. MACRODON, Gray. Younger branches pubescent ; leaves glabrate, spatulate-oblanceolate, 

 nerveless, fascicled, 2-4" long ; pedicels not over 1|" long ; lobes of the minutely viscid calyx narrowly 

 linear, twice longer than the shortly campanulate (1^" long) tube ; corolla 6" long, narrow ; anthers 

 oval-oblOng, scarcely exserted ; filaments slightly hirsute toward the base. — California, (FriSmont.) 



4. L. PUBBRULUM, Gray. Much-branched, 2-4° high ; spines numerous, slender ; leaves obovate or 

 oblong-spatulate, 4-8" long, 1-nerved beneath, fascicled, minutely pruinose-pubescent, as also the slender 

 branchlets and calyx ; flowers sessile ; calyx-lobes narrow-oblong, obtuse, li" long, exceeding the sub- 

 hemispherical tube ; corolla ii-b" long, white with a greenish margin, pubescent within toward the base, 

 the short ovate lobes recurved ; anthers cordate-globular; filaments glabrous. — W. Texas, (1609 Wright.) 



5. L. Palmbri, Gray. Proc.Amer.Aead. 8.292. Subpubescent, unarmed (?); branches slender; leaves 

 narrow-spatulate, 6-8" long ; flowers rather shortly pedicelled, tetramerous ; calyx-lobes lanceolate, ob- 

 tusish, slightly exceeding the campanulate tube, at least one lobe a little the larger ; corolla 5" long, a 

 third longer than the calyx, the limb i' wide, the broadly oval lobes pnberuleut-ciliolate, a little shorter 

 than the tube ; anthers oblong ; filaments very woolly at base. — ^Sonora, (Palmer.) 



6. L. COOPBRI, Gray. Froo. Amer. Acad. 7. 388. Stems 2° high, branches stout ; spines very short ; 

 leaves visoid-pubernlent, spatulate, retuse, rather rigid, few-veined, 6-9" long with the petiole ; calyx 

 cylindric-campanulate, abruptly contracted into a pedicel of equal length, (3-4",) viscid-pubesoent, the 

 oblong obtuse lobes equaling the tube and half-shorter than the funnelform (6" long) corolla ; corolla- 

 lobes ovate, very much shorter than the tube ; anthers oval, minutely mucronate ; filaments hairy at 

 base. — S. California, 



* * Calyx strongly 4-5-toothed, the lanceolate teeth a little shorter than the tube ; pedicels shorter 

 than the calyx or equaling it. Glabrous or nearly so, spiuesoent. 



7. L. BREVIPES, Benth. Lower California; little known. Calyx scarcely 1" long, the teeth lanceo- 

 late, acute ; corolla 3-5" long. 



8. L. EiCHii, Gray. Leaves spatulate, 3-5" long, minutely puberulent when young or nearly glab- 

 rous ; flowers tetramerous ; pedicels 1-2" long ; calyx campanulate, the broad-lanceolate aoutish teeth 

 about equaling the tube, somewhat recurved-spreading ; corolla 4" long, the tube glabrous within, twice 

 longer than the calyx-tube and the oval naked lobes ; filaments villous at base ; anthers oblong.— 

 California. 



* * * Calyx with 4-5 short or very short broad teeth, sometimes 2-3-labiately cleft, 

 (a.) Subpuberulent ; filaments naked or scarcely hairy at base, not exceeding the corolla. 



9. L. Fk^monti, Gray. Leaves spatulate, 6-9" long, finely puberulent, as also the pedicels and 

 calyx; ^pedicels 3-7" (or sometimes but 2") long; calyx oylindric, 2-3" long, the tube 4 times longer than 

 the teeth ; corolla tubular, 4^-6" long, the tube 4 timerionger than the 5 lobes, glabrous or slightly pu- 

 bescent within.— S. California or S. Nevada, (Fremont;) Arizona, (Bigelow.) 



10. L. Ahdersonii, Gray. Proc. Amer. Acad. 7. 388. Glabrous ; fiowers tetramerous ; calyx short- 

 campanulate, li" long or less. See page 275. 



(b.) Glabrous; filaments hairy at base ; fascicles of leaves from a usually woolly base. 



11 L ToRKEYi, Gray. Leaves lauoeolate-spatulate, rather thick, 6-18" long ; pedicels fascicled, 

 2-5" long ; flowers pentamerous ; corolla tubular-funnelform, 5-6" long, blue or purple, 4 times longer 

 than the campanulate subequally 5-toothed often tomentulose-oiliate calyx, the corolla-lobes also tomen- 

 tose-ciliate.— From W. Texas to S. California. , „, v ^i 



12 L BARBINODUM, Miers. Leaves linear-spatulate, 6-12" long; pedicels H" long, equaling the 

 calyx; flowers pentamerous ; corolla 3" long, campanulate above the narrow tube, 2-3 times longer than 

 the usually cleft calyx, the short lobes sparingly hairy-ciliate.-Mexico. 



13 L. Bbrlaj^dikri, Dunal. Leaves linear-spatulate or linear, narrowed at base, 4-7 ong; flowers 

 mostly tetramerous; pedicels li-3" long; corolla white, 3-3i" long, funnelform with d^^t^^ throat 

 shortly 4-lobed or more deeply 4.cleft, 3-4 times exceeding the short sometimes cleft calyx ; stamens and 

 style usuaUy exserted ; berries red.-S. W. Texas, N. E. Mexico and S. Arizona. 



60 



