of Smith, of the Order Musci. 225 



asplenioides, and jungermannoides, are taken up from imper- 

 fect specimens, of which no fructification has been seen. 



In essential characters, the genus which is most allied to 

 Hookeria, is undoubtedly Daltonia of the Muscolog'ta Bri- 

 tannlca. This includes Cryphcea of Weber and Mohr, and 

 some species of Pllotrichum of Beauvois, and has ciliary pro- 

 cesses alternating with the teeth, not united at the base by a 

 distinct portion of the membrane. According to our views 

 of the genus Daltonia, it will contain, besides D. splachnoides 

 and heteromalla, several beautiful individuals, which have 

 been hitherto united with Neckera, and which we hope short- 

 ly to be able to enumerate, 



A. Foliis iiniformibus undique insertis : sen 

 Exstipulat^;. * 

 (Fere omnibus caulibus procumbentibus ramosis.) 

 * Foliis enervibus, vel obsoletissime basi binervibus. 



1. Hookeria lucens, complanata, foliis bifariis, late ovatis 

 obtusis integerrimis reticularis enervibus, capsula ovata hori- 

 zontal!, calyptra integra impresso-punctata. 



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

 Hooker and Tayl. Muse. Brit. p. 89. t. 27. Hobson's Muse. Brit. v. 1. 



Hypnum lucens, Linn. Sp. PL p. 1589. Hedw. Sp. Muse. p. 243. 

 Turner Muse. Hib. p. 155. Moug. et Nestl. St. Crypt. No. 40. 



Leskea lucens, Schwaegr. Suppl. v. 2. p. 164. t. 84. Funck. Deutsche 

 Moos. p. 54. t. 35. 



Pteryophyllum lucens, Brid. Meth. Muse. p. 149.. 



Hab. Moist subalpine banks, Europe. West Coast of N. America, 

 A. Menzies, Esq. This beautiful and well-known moss has a near af- 

 finity to the following species, with which it agrees in its very pale 

 whitish-green colour, and exceedingly lax reticulation. 



2. H. acutifolia, foliis bifariis ovatis acutis enervibus reti- 

 culatis, capsula ovata horizontali, calyptra impresso-punctata. 

 Pl. V. 



* For the sa\e of convenience, (the terms not being strictly correct,) we here 

 employ the expressions stipulate and exstipulate. In the former of these divisions, 

 the larger leaves are regularly distichous, and inserted on two opposite sides of the 

 stems. There exist likewise intermediate leaves, sometimes forming a single, 

 6omi times a double row, always different in figure, and considerably smaller than 

 the lateral ones. These we have denominated stipules, although they ure free 

 from any attachment to the larger leaves, and only correspond to what are term- 

 ed the stipules of Jungermanvia. In the latter division, no leaves of this kind 

 exist. 



vol. ii. xo. ii. a rim. 1825. a 



