FHASCE1. 299 



predominating ; fruitstalk very short, straight ; leaf-cells as in 

 the last ; spores larger. 



3. P. alternifolium, Br. fy Schimp. ; stem-leaves distant, 

 lanceolato-acuminate ; perichsetial leaves subulato-setaceous, 

 both from a dilated base ; nerve thick, excurrent ; sporangium 

 ovate, immersed; male flowers gemmiform. Hook, fy Wils. 

 t. xxxvii. ; (Moug. ty Nest. n. 707.) 



In fallow fields, etc. Scotland, with the north and south 

 of England. Bearing fruit in spring. 



Monoicous ; forming little brownish tufts. The plant of the 

 first year short, that of the second an inch long from innova- 

 tions ; leaves minutely toothed above. Differs from the last 

 in the wider base of the leaves, the more predominant nerve, 

 the gemmiform male flowers, and the larger ovate sporangium ; 

 leaf-cells shorter than in the two last. The two-years-old 

 plant with its flagelliform innovations has a very different ap- 

 pearance from that of the first year. 



110. PHASCUM, Linn. 



Sporangium produced into an obtuse beak or apiculus ; 

 columella persistent, veil regularly cucullate ; male flowers 

 axillary ; antheridia naked, sometimes gemmiform ; prothallus 

 not permanent ; leaf-cells subrectangular or minute and sub- 

 quadrate, more elongated towards the base. 



1. P. cuspidatum, Schreh. ; stem radiculose, simple or CV 

 branched ; leaves ovato-lanceolate or lanceolate and cuspidate, * 

 erect, keeled, concave, hair-pointed from the excurrent nerve ; 

 sporangium roundish on a short fruitstalk, immersed. Hook. A k 

 # Wils. t. v. ; Eng. Bot. t. 2025, 2026, 2259. ; (Moug. % 

 Nest. n. 307.) 



On the ground, especially in a sandy soil. Common. Bear- 

 ing fruit in early spring. 



