1 86 Rhodora [September 



of both species have been submitted to Herr C. Midler, of FYeiburg 

 in Breisgau, Germany, who has kindly confirmed the above con- 

 clusion. The only New England stations for L. sctacea which can be 

 definitely cited at the present time are the following: Woods HoU, 

 Massachusetts {A. IV. F..)\ Bethany, Connecticut {A. IV. E.). 



II. Lepidozia sylvatica, sp. nov. L. setaa-a Auct. (in part). 

 Growing in more or less compact tufts, often in company with other 

 minute hepatics, brownish or yellowish green, varying to pale green : 

 stems 0.08 mm. in diameter, ascending, irregularly pinnate or bipm- 

 nate ; leafy branches usually lateral, very rarely postical, obliquely 

 or widely spreading ; flagelliform branches scanty, usually postical 

 but sometimes terminating a lateral leafy branch; rhizoids sparsely 

 developed, mostly lestricted to the lower parts of the leafy axes and 

 to the rtagelliform branches : leaves transversely inserted, distant to 

 loosely imbricated ; stem-leaves averaging 0.21 x 0.18 mm., deeply 

 trifid or quadrifid to within two or three cells of the base, segments 

 entire, subulate, usually more or less incurved but sometimes straight 

 and squarrose, two cells wide (rarely three or four cells wide) in 

 basal portion and tipped with a row of from two to four cells ; branch- 

 leaves similar to the stem-leaves but smaller and usually bifid or tri- 

 fid ; leaf-cells averaging 16 x 14 yoi, walls slightly and uniformly 

 thickened, cuticle smooth or very indistinctly verruculose : under- 

 leaves of the stem trifid (or very rarely quadrifid) to within one or two 

 cells of the base, 0.15 mm. long, 0.065 "^'"- ^^'^^^ ^^ base, segments 

 when well developed similar to those of the leaves, one or two 

 of the segments regularly aborted and reduced to one or two cells in 

 length ; under leaves of the branches smaller and often only twice 

 divided: inflorescence dioicous : ? inflorescence borne on a very 

 short postical branch, often with no leaves except those of the 

 involucre ; bracts and bracteoles in two or three rows, .scarcely dis- 

 tinguishable from one another, those of the innermost row ovate, i 

 mm. long and 0.35-0.5 mm. wide, usually bifid about one fourth 

 with acuminate and denticulate or ciliolate divisions and a sharp and 

 narrow sinus, rarely undivided, entire or sparingly toothed near base, 

 cells longer and with thinner walls than in the leaves, cuticle more 

 distinctly verruculose ; bracts and bracteoles of second and third 

 rows successively smaller and more regularly bifid ; perianth nar- 

 rowly ovoid or cylindrical, 2.7 mm. long, 0.6 mm. in diameter, terete 

 below, bluntly trigonous above, the keels separated by narrow grooves, 

 mouth more or less contracted, ciliate, the cilia one to four cells long 

 and one or two cells wide at the base, cells of the perianth similar to 

 those of the bracts: $ inflorescence borne on a short postical or, 

 more rarely, lateral branch, usually proliferating at the apex into a 

 leafy axis ; bracts in four or five pairs, strongly concave, ovate, 0.35 

 mm. long, 0.2 mm. wide, bifid about one-half, the divisions acuminate, 

 short-ciliate on the margins, sinus sharp, bracteoles mostly bifid 



