64 \Zygodon. 



attenuate ; teeth 8, bigeminate, minutely rugose, yellow, broadly lane., 

 cleft at apex, when dry reflexed and appressed to the capsule, cilia 

 lanceolate-subulate, rather shorter than teeth, hyaline, slightly incurved. 

 Male infl. terminal on lateral ramuli, bracts ovate, acute. 

 HAB. Trunks of trees, rare. Fr. 5. 



On a felled tree in a timber yard at Chapel End, Walthamstow, probably brought from 

 Epping Forest (T. F. Forstcr) ! Near Hastings (Jenncr] ! Minehead, Somerset (Miss 

 Gifford}. Epping Forest (Holmes 1885) ! ! 



Wilson first cleared up the uncertainty about this moss, which had 

 been confounded with both Z . viridissimus and Z ', conoides. It is of singular 

 soft pulpy consistence, and quite reminds us of a species of Pottia. 



5. ZYGODON GEACILIS. Wtls. 



Dioicous ; taller, widely casspitose, fuscescent. Leaves subrecurved, 

 oblong-lane., irregularly serrulate at apex, nerve excurrent. Caps, on 

 a short rufous seta, oblongo-cylindric, lid rostrate, peristome as in Zyg. 

 conoideus. (T. LIV, F.) 



$YN.Zygpdongracilis WILS. MSS. BERK. Handb. Br. m. 219 (1863). HUNT in Mem. Lit. 

 Phil. Soc. Manch. 3 ser. iii, 237 (1867). HOBK. Syn. br. m. 98 (1873). HUSN. Muse, 

 gall. 149, t. 43 (1887). JURATZ. Laubm. oester.-ung. 190 (1882). 

 Didymodon gracilis SCHIMP. in MOLENDO Muse, tirol. aust. n. 16. 

 Aniphoridinm gracile DE NOT. Epil. bri. it. 278 (1869). 

 Zy god on Nou'ellii SCHIMP. Synops. 2 ed. 297 (1876). HOBK. Syn. br. m. 2 ed. 130 (1884). 



Dioicous ; in wide crowded tufts, brownish or blackish-green above, 

 reddish-brown at base. Stems I 3 in. high, rigid, repeatedly divided, 

 with innovations at short intervals, and fuscous branched radicles at the 

 lower leaf-axils. Leaves crowded, when moist subrecurvo-patent, 

 when dry laxly incumbent, lower narrowly elliptic-lane., upper from a 

 concave oblong base, narrowly lane., arched backward, acutely carinate, 

 the wings patent from the middle, waved, minutely papillose, at apex 

 irregularly eroso-serrate or only with 36 irregular distant repand teeth, 

 nerve semiterete, narrow, subcanaliculate in front, hispidulous at 

 back, vanishing just below apex or slightly excurrent ; upper cells very 

 small, rounded and well-defined, more or less chlorophyllose, basal 

 oblongo and hexagono-rectangular, smaller towards margin, pachy- 

 dermous, diaphanous. Perich. bracts similar; vaginula oblong, para- 

 physate, seta stout rufous, only 3 times length of capsule which is 

 oblongo-cylindric, suberect, somewhat asymmetric, castaneous, 8-striate, 

 costulate when dry, lid conico-rostellate pale red, calyptra long, rostrate, 

 annulus large, of 3 rows of cells; teeth pale, rather broad, 8 bigeminate, 



