784 P^renoraycetse, Hysteriacese, Scolecosporae, Acrosperraiim. 



3. Acrospermum gregarium Hazsl. Math. es term. Kozlem. XXV, 2757 

 2, Budapest 1892, p. 25. — Stromatibus ovato-pyramidalibus, 

 albis, apice rubris; peritlieciis unico foramine rotundo apicali de- 

 liidcentibue ; sporidiis iiliformibus, continuis, in utraque parte aca- 

 minatis, albis, fasciculatim ex stromate prominentibus, ejectis, de- 

 mum curvatis, 50 p. longis. 



Hdb. in ramis in Hungaria. — Sporidia dimidio breviora 

 quam sporidia Acrospermi compressi. 



4. Acroapermum urceolatum Olson, Bot. Graz. XXIII, 1897, p. 371 2758 

 tab. XXIX, fig. 1-10. — Peritbeciis solitariis v. in cgespites mi- 

 nutos aggregatis, elongato-verticalibus, subcompressis, in maturi- 

 tate stipitatis urceolatisque, initio hemisphLericis, dein clavatis, 

 obscure olivaceis, supra tomento albo granuloso tectis, 550-800 ;. 

 longis, 220-400 u. latis, ostiolo distincto ornatis; ascis copiosis, 

 elongato-cylindraceis, deorsum attenuatis, confertissimis, 220-350 



^:*^-^; sporidiis byalinis, filiformibus, tenuissimis, 200-350 » 1,6, 

 raultiseptatis, vulgo curvulis, rarius in asco rectis; paraphysibus 

 delicatis, filiformibus, non septatis, 60-110 «1,3. 



Hdb. in fronde Selaginellae rupestris, Minnesota Amer. 

 bor. 



