85 



HEPATICiE IN HIBERNIA, MENSE JULII, 1873. 



Lectfe a S. O. Lindberg. 



Acta Societatis scieiitiarum fennicje, x, p. 467 — 559. 



That any one on their first visit to a country should, in a few 

 weeks, collect so many as 87 species of Hepatic^e, may certainly 

 be looked upon as remarkable, but still more exceptional is it to 

 find recorded a critical notice of every one of these, with elaborate 

 synonymy, and structural details devised from careful dissections. 

 All these, however, are given in the paper before us, and with a 

 clearness and precision that stamp it at once as the work of a 

 master mind. Nor is this all, a new arrangement of the order is 

 brought forward which we transcribe entire, as being likely to 

 prove a useful guide to students in these interesting plants, 

 especially as many may not have an opportunity of consulting the 

 original. 



The whole are divided into three families, and these are sub- 

 divided into Scliizocai'pce and Ch'istocarpce according to the nature 

 of the fruit. The great group of Jungermaniacece Schizocarpce is 

 again broken up into the^following sections : — 

 a. Anomogamas. 

 Prothallium disciform, producing a plantigenous bud from the 

 margin. Stems more or less regularly pinnate, twice or thrice 

 compounded, more rarely dichotomously branched. Leaves incu- 

 bous, never opposite nor connate, conduplicate, the front lobe 

 round, ovate or rarely ovate-lanceolate, entire, sometimes toothed, 

 ciliate or more deeply emarginate, very rarely sublobulate, the 

 hinder lobe smaller, saccate, galeate, cucullate or flattish, rarely 

 somewhat indistinct, with some minute, irregular, commonly 

 styliform lobules frequently placed between the hinder lobe and 

 tlie stem. Amphigastria round ovato-rectangular, entire, bi- 

 lobed, many-cleft, or sometimes with galeate lobes, rarely none. 

 Gamoeciuni dioicous, autoicous or much more rarely paroicous. 

 Pericha^tium apical, or proceeding from the posterior face of the 

 stem, next its side above the axil of the leaves as a proper 

 ramulus, never from the axil of the aniphigastrium. Pi^tillidia 

 usually very few. Colesula commonly small, 5-plicate and some- 

 times winged or compressed, rarely terete or densely plicate, with 

 the mouth often very narrow and beak-shaped ; rarely none. Seta 

 very short, or short, slender. Theca minute, globose, almost 

 always very thin and pelluciii, as if composed of very few strata, 

 most frecpiently cleft to the middle, and with erect valves, shewing 

 internally few or no spii'al fibres. Elaters one- or two-spired, 

 sometimes scarce, spirally thickened, adhering pencil-like to the 

 apex of tlie valves or to the interior face of the theca. Spores 

 minute, rarely large, smooth or nearly so. Androecia lateral to 



