180 Evans: Hepaticae from Florida 



our flora include two representatives of the Epigonianthcae and 

 seven Lejeuneae ; they are as follows : 



I. Plagiochila Smallii sp. nov. 



Bright- or dark-green, loosely tufted : stems rigid, varying in 

 color from green to yellowish or reddish, O.35 mm. in diameter, 

 composed of about three layers of thick-walled cells around a 

 central cylinder of thin-walled, colorless cells, all the cells except 

 those of the outermost layer more or less elongated ; stems spar- 

 ingly and irregularly or subdichotomously branched, the branches 

 oblique, similar to the stem but often with smaller leaves : stem- 

 leaves distant, spreading at an angle of 45-60°, narrowly ovate to 

 ligulate, maximum length about 3 mm., width about i mm., 

 shortly decurrent both antically and postically ; antical margin 

 straight or nearly so, plane or narrowly revolute, especially near 

 the base, entire or with one or two small teeth in outer part; post- 

 ical margin straight and parallel with the antical margin or slightly 

 curved, revolute near the base, bearing two to six teeth in outer 

 third, otherwise entire ; apex broad and usually truncate, bearing 

 two to four teeth ; all of the teeth acuminate, the largest (in the 

 apical region) six to ten cells long, three to seven cells wide at the 

 base, and ending in a row of two or three cells : branch-leaves 

 similar to the stem-leaves but usually with fewer and smaller 

 teeth : leaf-cells plane, averaging 29 x 16 fi at the margin of the 

 leaf, 37 X 23/^ in the middle, and 46 x 25 // at the base; cell- 

 walls thin but with distinct triangular trigones and occasional inter- 

 mediate thickenings ; cuticle sHghtly thickened, Smooth : under- 

 leaves rudimentary : inflorescence dioicous : 9 inflorescence borne 

 on a more or less elongated branch, usually without an innovation ; 

 bracts in one pair, similar to the stem-leaves but usually a little 

 broader in the basal region and with a few more teeth along the 

 postical margin, 2.5 mm. long, 1.2 mm. wide; perianth (of un- 

 fertilized inflorescences) somewhat compressed, campanulate, 1.2 

 mm. long, i mm. wide, shortly bilabiate at the mouth, each lip 

 bearing about twenty slender teeth, the majority of them being 

 six to twelve cells long and two cells wide at the base ; wing along 

 the antical keel entire and very narrow, found in the basal region 

 only : (^ inflorescence and mature sporophyte not seen. (Plate 



5, FIGURES 1-8. 



In hammocks near the homestead trail, between Cutler and 

 Camp Longview {Small & Carter ijy6, Tzfii). In everglades 

 near the unfinished railroad grade, betw^een Cocoanut Grove and 

 Cutler {Small & Carter 1388). Breckell's Hammock {E. G. Brit- 



