TRICHOSTOMEI. 263 



Dioicous ; forming yellowish-green tufts 1-3 inches or more 

 high. Stems flexuose, covered with rootlets ; nerve of leaves 

 occupying almost the whole disk; leaf- cells as in the last; 

 peristome very fugacious; teeth unequal, sometimes anasto- 

 mosing below. 



A much larger plant than the last, with taller stems, and 

 much longer, more setaceous leaves; margin plane. 



3. L. homomallum, Mull.; loosely tufted; stems short; 

 leaves spreading or secund, subulato-setaceous, from an ovate 

 base ; nerve broad, excurrent ; sporangium ovato-oblong ; ring 

 narrow ; lid short, conical ; teeth simple or united in pairs ; 

 basal membrane very short. Hook, fy Wils. t. xx. ; Eng. Bot. 

 t. 1899, 1900.; (Plate 22, fig. 5) ; Moug. $ Nest. n. 19. 



On sandy soil, etc., especially in mountainous districts. 

 Bearing fruit in autumn. 



Dioicous ; forming lax, green, glossy patches. Leaves mostly 

 secund; nerve excurrent and predominant, but ill defined; 

 teeth sometimes reduced to sixteen ; leaf-cells as in the last 

 two species. 



4. L. subulatum, Mull. ; stems short ; leaves spreading or 

 secund, subulate from an ovate base, widely recurved; sporan- 

 gium oval ; ring none ; lid conico-rostellate ; basal membrane 

 very narrow; antheridia naked, axillary. Hook, fy Wils. t. 

 xlii. 



On banks in Cornwall. Mr. Tozer. Bearing fruit in 

 spring. 



Monoicous; yellow-green. Stems 3-4 lines high; lid 

 obliquely rostrate. Differs from the last in the inflorescence, 

 deficient ring, and more slender teeth. 



5. L. glaucescens, Hampe ; caaspitose ; leaves linear-lan- 

 ceolate, more or less sprinkled with a glaucous leprous sub- 

 stance, toothed above ; nerve subexcurrent ; margin plane ; 



