364 HBPATIO^, 



several lobes. Calyptra free, obovate, delicate, surrounded at its 

 base by 10-12 sterile pistillidia. Capsule shortly pedicellate, 

 oval-globose, coriaceous, dividing to about the base into 4 valves. 

 Elaters moderately long, bispiral. Spores small, asperulous. 

 Androecia subspicate, on the middle or end of stem or branch ; 

 perigonial bracts 6-10 pairs, somewhat similar to the leaves, 

 2-4-androus. 



Subgenus 1. EUCALYX, Lindh. 



Nardia, sect. 1 Eiicalyx, Lindb. in Bot. Not. p. 167 (1872). 



Stipules absent. Bracts 1-2 pairs, innermost adnate at the 

 base to the perianth. Perianth projecting, moderately firm, 

 acutely 3-8-carinate, mouth constricted, sometimes tubular. 



1. Nardia hyalina [Li/ell), Carr. 



Jungermania hyalina, Lyell in Hook. Brit. Jung, t, G3 (1816). 

 Aplozia hyalina, Dum. Hep. Eur. p. 58 (1874). 

 N'ardia hyalina, Carr. Brit. Hep. p. 35, pi. 11, f. 36 (1874). 

 Nardia [Eucahjx) hyalina, Lindb, Muse. Scand. p. 8 (1879). 



Dioicous, broadly csespitose, small to medium size, of a light 

 green colour, often witli a rosy tinge. Stems procumbent or 

 suberect, simple or innovantly branched, branches lateral, pro- 

 duced from the axil of the leaves or bracts ; radiculose, rootlets 

 claret or dull purple coloured, very rarely dull white, copious, 

 long, produced from the postical side of stem, base of the leaves 

 and perianth. Leaves obliquely inserted, horizontal, subimbri- 

 cate, contiguous or distant and smaller below, broadly rotund, 

 orbicular or broadly oval, semi-amplexicaul, sometimes subcompli- 

 cate, undulate or plane, margin entire ; texture somewhat tender ; 

 cells largish, roundish, walls thin, trigones distinct. Stipules 

 absent. Bracts larger than the leaves, adnate to the lower 

 portion of perianth, sometimes almost free, erect, enclosing 

 perianth, subrotund, entire. Perianth oval, oblong or ovate, 

 upper portion 4-6-plicate, contracted, mouth small, margin 



