— 405 — 

 Descriptions of the new species. 



Ainbljstegiiiiii pahidosiim n. sp. 



Autoicous; resembles in habit the greatest forms of A. varium var. 

 orthocladon but is larger. Stem 0,25 mm, in diameter, green, suberect, 

 with distant fascicles of radicles, and few, slender, short, divergent branches. 

 Stem-leaves very patent, 2 mm. long and 0,7 mm. broad, from ovate, 

 s o m e d e c u r r e n t b a s e 1 a n c e 1 a t e , with long and subulate 

 acumen finely serrulate all round. Nerve green, strong, 

 0,06—0,10 mm. broad, at the base gradually attenuated and reaching 

 '■^! i length of the leaf. Cells incrassate, very chlorophyllose, at middle 

 of the leaf 0,010 mm. broad and 4 — 5 times as long, in the acumen 6 — 7 

 times as long, in the basal third general el onga to -rectangular 

 and rhomboid, incrassate, green, porose, 0,01 5 — 0,0 20 mm. 

 bi'oad and 2 — 4 times as long; branch -lea ves elongato-lance- 

 olate, finely acuminate, 1,0 — 1,5 mm. long and 0,4—0,5 mm. broad. 

 $ inflor. thin, bracts longly acuminate, nervless, faintly serrulate in the 

 acumen, with about 5 anthcridia. Fruit unknown. 



Sparingly scattered in tufts of A. varium and A. riparium in a moor 

 at ,R6de Bro" in the park ,Dyrehaven" near Copenhagen. 



A "paludosum comes nearest to A. varium and resembles it very 

 much in atructure of the leaves and in habit. It is easely known from 

 the latter by the larger more longly acuminate leaves and the proportion 

 of their nerve. 



Ainbiystegium saxicola n. sp. 



Autoicous; in depressed, somewhat rigid, deep-green or brownish green 

 tufts. Stem brown, 0,2 mm. in diameter, rooting with numerons radicles, 

 densely ramulose, branches short, subdistichous, their base 

 subrounded with paraphyllia. Leaves crowded, erecto patent, cauline 

 leaves from broadly ovate base lanceolate, finely acuminate, 0,9 — 1,1 mm. 

 long and 0,4 — 0,55 mm. broad, entire or feebly serrulate below; branch 

 leaves broadly lanceolate, 0,8 mm. long and 0,3 mm. broad. Nerve 

 strong, brownish green, 0,05 mm. broad at base, vanishing 

 below acumen in the stem leaves, reaching the middle or a little 

 more in the branch leaves, leaf cells incrassate, brownish, their 

 p lama-sack indistinct, 0,009 mm. broad, at middle of the leaf 2 — 4 

 times, in the acumen 6 times as long as broad, along the nerve in the 

 basal part rectangular and ovate, 0,012 — 0,014 mm. broad, very incrassate, 

 and porose , at angles a great cluster of ({uadratic, trans- 

 versal and irregular, porose cells. Perichsetium with radicles; 

 bracts 1,8 mm. long, ovate lanceolate, subulate with a short api cuius 



