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(I F F 3540) Similar Post Date: Thu, 21 Aug 2008 7:48:46 +0000 Mountains, Penn and N Y 4 Lactuca hirsute Muhl. HAIRY OR RED WOOD-LETTUCE. (I F F 3540) Similar to the preceding species, but commonly smaller and less leafy; stem 3-18 dm high, naked and paniculately branched above, usually hirsute, at least below. Autor of the post: Undefined In dry soil, Me Post Date: Thu, 21 Aug 2008 7:32:15 +0000 Stem-leaves mostly sessile or auriculate-clasping, 7-17 cm long, the uppermost sometimes lanceolate and entire, the basal petioled; midvein rarely spinulose; heads numerous, 4-6 mm broad; involucre glabrous, io-i8mm. high; outer bracts shorter than the inner; rays reddish-yellow or paler; achenes oblong- oval, flat, about the length of the beak. In dry soil, Me to Ont, Minn, Ala and Tex July-Sept. Autor of the post: Undefined Similar to the pre- ceding Post Date: Thu, 21 Aug 2008 7:17:14 +0000 5 Lactuca Morssii Robinson. MORSS WILD LETTUCE. Similar to the pre- ceding species; stem strict, leafy, 1-3 M tall, somewhat hirsute at the base. Autor of the post: Undefined Me and eastern Mass Post Date: Thu, 21 Aug 2008 7:07:13 +0000 Leaves runcinate-pinnatifid, the lower sparingly hirsute beneath along the midrib and cordate-clasping narrowed base, the upper glabrous; involucre shorter than in L hirsuta; rays blue; achenes oval-lanceolate, 3-ribbed on each face, 4-5 mm long, 3-4 times as long as the filiform beak. Along salt meadows. Me and eastern Mass, to N Y 6 Lactuca sagittifolia Ell. Autor of the post: Undefined Leaves entire or denticulate Post Date: Thu, 21 Aug 2008 6:48:39 +0000 ARROW-LEAVED LETTUCE. (I F F 3541) Biennial; stem glabrous throughout, or hirsute below, leafy nearly up to the usually paniculate inflorescence, 6-18 dm high. Leaves entire or denticulate, the lower rarely pinnatifid, sometimes spinulose on the margins, those of the stem sessile or sagittate-clasping, 7-15 cm long, 1-3 cm wide, the basal and lower ones petioled; heads commonly very numerous, 48 mm broad; involucre cylindric, 10-14 mm high, the outer bracts shorter than the inner; rays yellow or reddish. Autor of the post: Undefined Stem and branches hirsute Post Date: Thu, 21 Aug 2008 6:35:06 +0000 In dry, open soil, N B and Ont to Idaho, Ga and Kans July-Sept. 7 Lactuca Steelei Britton, N sp STEELES WILD LETTUCE. Stem and branches hirsute. Autor of the post: Undefined July 10, 1897 8 Lactuca Post Date: Thu, 21 Aug 2008 6:16:06 +0000 Leaves obovate to oval, the larger 2 dm long and i dm wide, sessile, irregularly dentate, not lobed, hispid on the veins beneath, short-acumi- nate; involucre about 12 mm high; rays not seen; achenes oval, 3 -ribbed, about 3 mm long, the filiform beak slightly shorter; pappus bright white. Near Wash- ington, D C, E S Steele. July 10, 1897 8 Lactuca pulchella (Pursh) DC LARGE-FLOWERED BLUE LETTUCE. Autor of the post: Undefined In moist soil, western Ont Post Date: Thu, 21 Aug 2008 6:01:51 +0000 (I F F 3542) Perennial, glabrous throughout, somewhat glaucous; stem rather slender, leafy up to the corymbose- paniculate inflorescence, 3-9 dm high. Leaves linear-lanceolate, lanceolate or oblong, acute, entire, dentate, lobed or pinnatifid, those of the stem sessile or partly clasping, 5-20 cm long, 4-35 mm wide, the lowest and basal ones sometimes petioled; heads mostly numerous, 12-20 mm broad ; involucre well imbricated, 16-20 mm high ; achenes oblong-lanceolate, flat, twice as long as their tapering beaks. In moist soil, western Ont to the N W Terr, and Br Col, south to Mich, Kans, N Mex and Cal June-Sept. Autor of the post: Undefined (I F F 3543) An- Post Date: Thu, 21 Aug 2008 5:50:04 +0000 Lactuca villdsajacq. HAIRY- VEINED BLUE LETTUCE. (I F F 3543) An- or biennial; stem glabrous, leafy up to the paniculate inflorescence, 6-18 dm high. Autor of the post: Undefined In thickets, N Y Post Date: Thu, 21 Aug 2008 5:36:50 +0000 Leaves acuminate, acutely dentate or the teeth mucronate-tipped, glabrous above, pubescent with short, stiff hairs on the veins beneath, sessile and slightly clasping at the base, or petioled. 10-15 cm long, 3-6 cm wide, the lowest some- times lobed at the base; heads numerous, 6-10 mm broad; involucre about I cm high, some or all of the bracts obtuse; achenes thick, oblong, little flattened, nar- rowed above. In thickets, N Y to 111, south to Fla, Ga and Ky July-Sept. 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