— 293 - 



more or less ribbed; teeth red; endostome yellow; calyptra very 

 long, fringed below. Leaves limbate cucullate Ungulate. 



II. Diplolepis. Capsule necked, neither twisted nor sulcate; 

 endostome rudimentary adhering to teeth; calyptra us. fringed 

 when ypung. Leaves not limbate. 



B. Peristome simple or wanting. Monoecious. 



a. Leaves not recurved. Capsule without distinct defiuent 

 neck; pedicel red. 



III. BhabdotheCia. Capsule greenish or pale yellowish, sul- 

 cate when dry, often red-ribbed; peristome often present; ca- 

 lyptra not long, r. fringed. Leaves often limbate. 



IV. Pyroniitriuni. Capsule pale brown not sulcate; peri- 

 stome none; calyptra long, often fringed when young. Leaves 

 limbate. 



b. Capsule more or less distinctly necked; pedicel yellow 

 in younger state. Leaves recurved. 



V. Xanthopus. Capsule reddish r. sulcate, not ribbed; peri- 

 stome us. present. Leaves not distinctly limbate. 



I. Streptotheca Kindb. 



A. Capsule very much twisted also when unripe. Leaves 

 obtusate obtuse; costa hispid above at back, not excurrent. 

 Spores about 0,01 m. m. 



l.E.COnlorta Wulfen. — Bryum Wulf.; Encalypta Lindb.; E. 

 streptocarpa Hedwig. 



Outer perichetial leaves from broad base abruptly tapering 

 to a long sublinear obtuse acumen; the inner shorter with short 

 acute acumen. Pedicel faintly rough. Calyptra hispid at beak. 

 Sterile stems often with propagula. Dioecious r. fruiting. — 

 Rocks princ. calcareous. Eur. not uncommon. Sweden, Nor- 

 way, Switzerl.! Austria: C. E. Kindberg. Amer. Can.: Macoun. 

 2.E.cucullata C. M. et Kindb. 1. c. 



Perichetial leaves gradually long-acuminate acute with long 

 hairpoint. Pedicel smooth. Calyptra hispid on the whole 

 surface. Stem without propagula. Monoecious. — Crevices of 

 alp. rocks r. Amer. Can. Brit. Col.: Macoun. 



B. Capsule faintly twisted, straight when unripe; pedicel 

 smooth; calyptra hispid at beak. Upper leaves acute; costa 

 smooth often excurrent. Spores 0,02 m. m. Monoecious. 

 3.E.procera Bruch. 



Upper leaves gen. acute, sometimes with hairpoint; the peri- 

 chetial subovate short-acuminate us. with hairpoint. Capsule 

 without distinct neck; teeth us. shorter than endostome. — * 



