30 



II. Acutifolia. — Coronula persistent. 



A- Indivisa. Sterile leaves undivided. 



6. Nucleus 350— 375 /ti long, leiopyrena. T. pro- 



lifera Leonh, 



7. Nucleus 425 — 450 iw long, oxygyra. T. fim- 



briata Allen, 



B. Divisa. Sterile leaves divided (usually into four 



terminal leaflets). 



4- Attenuata. Leaflets attenuate. 

 § Secondary ray undivided, sterile. 



8. Nucleus 285— 355 fi, rays 4— 7-celled. T. cali- 



fornica Braun. 



9. Nucleus 330— 340 /i, rays 3— 4-celled. T. sti- 



pitata Allen. 

 § Secondary rays divided^ fertile. 



10. Nuc^eus 360 — 425 fi long. T. intricata 



Leonh. 



11. Nucleus 450 — 500 jw long. T. intertexta 



Allen. 



+•4" Non attenuata. 



12. Ultimate cell mucroniform; nucleus 480-500^ 



long. T. apiculata Braun. 



Die Diagnosen der neuen Arten sind: 



Tolypella glomerata Leonh. var. nova: abbre- 

 viata Allen differt: Statura variabilis, color incrustatlone 

 cinerascens vel munda. Folia et sterilia et fertilia abbre- 

 viata, radiis 3-cellularibus vix attenuatis obtusis. Sporangia 

 aggregata, coronula evanescente, nucleo fuscoSOO— 335^1ongo, 

 striis 6 — 8, acutis vix prominulis. Antheridia longe stipitata 



230-380 ju diam. 



T. comosa Allen nova spec. Minor, monoica, statura 

 0^05 -0,10 m; color incrustatione cinerascens. Folia verti- 

 cillorum sterilium indivisa, 3-articulata, fertilia in capitula 

 congesta, simpliciter divisa, radiis 3-cellularibus, obtusis, 

 non attenuatis. Sporangia in divisura foliorum et in fundo 

 verticilli aggregata; coronula evanescente; nucleo atro, ovali, 

 425—475/4 long., 320— 360 /^ lat., 7— 8-gyrato, striis promi- 

 nulis, obtusis. Antheridia sessilia, 400 — 425 ft diam. 



T. fimbriata Allen nov. spec. Statura mediocris^ 

 0,15—0,20 m alt. , viridis. Folia verticillorum sterilium 

 indivisa, rarissime divisa, 2 — 3 articulata, acuta. Folia 

 fertilia duplicato divisa, radiis fertilibus 3— 4- cellularibus. 

 Sporangia in divisura foliorum et in fundo verticilli aggre- 

 gata, coronula persistente, celluUs superioribus longioribus 

 quara inferioribus ; nucleo fusco, ovali, 425 — 450/* long., 



s. 



