156 Lloyd and Underwood : A Review of the 



L. alopeciiroides, var. pinnatum Chapman, Fl. So. States, ecL 3, 



638. 1897. 



Stems pinnately branching, elongate (20—30 cm.) and very 



slender (1-2 mm.) with evident dorsiventral character: leaves (8-9 

 rrftn. x 1 mm.) thin, linear-lanceolate, slightly curved, long-toothed, 



those of the upper side smaller, all somewhat contracted at the 

 base ; those of the peduncles similar but more gradually tapering 

 to the apex : peduncles 25-40 cm. long, slender (1-2 mm. in diam.), 

 very leafy: strobiles 3-12 cm. long, 5 mm. thick, with spreading 

 sporophylls, similar to the peduncular leaves, but longer and more 

 gradually tapering : sporangia sub-globose. 



This very distinct species was made first a variety of L. inunda- 

 turn and later of L. alopeciiroides, but its dorsiventral habit and 

 other marked characters clearly distinguish it from both ; it is very 

 clearly recognized. The lateral expanse of foliage ranges from 16 

 to 18 mm. Very rarely the denticulation appears to be nearly ab- 

 sent, as in a specimen seen from Jacksonville, Fla. 



Specimens have been examined as follows : 



Mississippi : Jackson, July, 1896, C. L. Pollard (N) ; Ocean 

 Springs, June, 1896, L. M. Underwood (U) ; Aug., 1889, F. S. 

 Earle (U) ; Aug., 1898, S. M. Tracy (Y). 



Alabama : Spring Hill, Aug., 1897, B. F. Bush, 159 and 151 

 . (Y, N) ; Auburn, Oct., 1896, C. F. Baker (C). 



Georgia : Mcintosh Co., June, 1895, J. K. Small (C). 



Florida: "Damp Pine Barrens" in Jacksonville, Sept., 

 1896, A. H. Curtis, nos. 3788 (C, N), 5783 (G) ; S. Fla., Herb. 

 Chapman (N, C). 



7. L. ALOPECUROIDES L. Sp. PL 11X52. 17S3 



Stems elongate (50 cm. or more), thick (3-4 mm.), with an 

 arching habit, rooting near the end, the vertical peduncles arising 

 from the arches, densely leafy : leaves (5-7 mm. x 0.6-1.2 mm.) 

 thicker than in the last, lanceolate -acuminate, spinulose on the sides 

 of the stem to linear lanceolate on the upper and lower side, margin 

 long toothed, and the lower surface near the base usually very 

 hairy, especially on sides of the stem : those of the peduncles 

 similar: peduncles long (20-30 cm.) densely leafy and scarcely 

 distinguishable from the stems: strobiles 2—10.5 cm - l° n g* 

 5 cm. thick, when ripe with reflexed sporophylls, these sim- 

 ilar to the peduncular leaves but not hairy on the underside, 



