HOOKERIA. 89 



rto united ; and the mitriform calyptra affords a character 

 iich we consider of the highest importance. We are acquainted 

 ith several exotic species which agree with them in all these 

 iculars; but we lament that we cannot accord with the 

 ed botanist who established the genus in the ninth volume 

 the Linncean Transactions, in considering his H.JilJculcB- 

 \formis, tamariscina, rotulata, Jlalellata, Arluscula, Jlexilis y 

 I and uncinata, to accord with it, either in their natural or arti- 

 ' ficial characters. _ _____ 



1. H. lucens; leaves broadly ovate, entire, obtuse, nerveless. 

 (TAB. XXVII.) 



H. lucens, Smith in Linn. Trans, v. 9. p. 276. Engl Bot. t. 1902. 

 Hypnum lucens. Linn. Sp. PL p. 1589. Hcdw. Sp. Muse. Turn. Muse. 

 Hib. p. 155. Moug. et Nestl. n. 40. Leskea lucens. De Cand. FL 

 Gall. Syn. Sckwaegr. Suppl. t. S4.DHI. Muse. t. 34. f. 10. 

 HAB. Moist banks in woods, and among rocks. 

 Stems procumbent, from two to four inches long, slightly 

 branched, plane. Leaves arranged on four sides, but bifa- 

 rious in their direction, quite plane, of a very succulent tex- 

 ture, reticulated, with the meshes large, the margin not 

 thickened, nerve none. From the points of the leaves roots 

 are often emitted. Fruitstalks about an inch long, curved 

 at the summit. Capsules ovate, horizontal, reticulated ; lid 

 conico-rostrate. Calyptra thin, whitish, faintly reticulated, 

 mitriform, jagged at the base. Peristome exactly as in the 

 Hedwigian genus Leskea, and as represented by Schwae- 

 grichen and Smith. 



! 2. H. l&te-virens ; leaves ovate, acuminulate, margined, very 

 obscurely serrated at the extremity, with two nerves reach- 

 ing nearly their whole length. (TAB. XXVI I.) 



HAB. Bog near Cork in tolerable plenty, but rare in 

 fruit. Mr. Drummond. 



Steins from two to three inches in length, branched in an 

 irregularly pinnated manner, compressed. Leaves arranged 

 on four sides, but bifarious in their direction, ovate, slightly 

 concave, their margin thickened, their point acuminulate, 

 and under a microscope slightly serrated, nerves two to each 

 leaf, standing considerably apart, and running up to more 

 than three fourths of the length of the leaf; reticulation 

 very evident but not so large, nor are the leaves so succu- 

 lent as in the last species. Fructification as in H. lucens. 



Our friend Mr. Drummond had the good fortune to dis- 

 cover this elegant plant, and was so kind as to communicate 



