Myxomyceteifi, Echinosteliaceas, Echinostelium. 289 



Bonamy. t. 3, Reticidaria alba Bull. t. 32G, Spumaria muci- 

 lago Pers. Disp. t. I, f. a b c, Relicularia ovaia var. Witli. Arr. 

 IV, 1978, Spumaria cornula Schum, Saell. 1415, FJ. Dan. t. 1978, 

 f. 1, Spumaria alba DC. Fl. Fr. II, 201, Fr. S. M. III, 25, Eng. 

 Fl. V, 310, Cooke Hdbk. n. 1108, Spumaria alba^ %. laminosa, 



I (3. cornuta Fr. S. M. III, 95, Didi/mitim spurnarioides Fr, S. M. 

 III, 121, Diderma spumariccforme Wallr. Fl. Germ. 2208. — 

 /Ethaliis albescenti-griseis, 2-6 cm. longis, 2-o cm. latis, spongio- 

 sis; columella inani, cylindracea, raraosa, apicem peridii non attin- 



\ gente; floccis capillitii crassiusculis, reticulatim junctis, in nodulis 

 valde incrassatis; sporis spinulosis vel ca3sio-atris, 10 v.. diam. 



Hab. in terra graminosa ad stipites culmos, caules, ramulos nec 

 non muscos in Germania, Gallia Fennia, Britannia, Italia, Hunga- 

 ria, P)elgio et Amer. bor. 



Species incerta. 



2. Spumaria Wicheneri Berk. in Grov. 1873, n. 341. — Effusa, roti- i-^^^o 

 culata. gilva; sporis globosis, magnis, levibus, 10-13 y. diam. 

 Hab. in ligno putri, Pensylvania. 



Ordo III. Amaurochetese Rost. 



Peridia discreta aut coalita (jcthalia), calce destitiita. Spone fiisco- sive vio- 

 laceo-atra3, raro subcinnamoiuea^ Capillitium et columella colore spo- 

 rarum. 



Fam. 1. Keliiiiosteliacete Rost. 



;'eridia stipitata, cohimella carentia. Capillitiura apice peridii oriens, in rete 

 I densum connexum. 



ECHINOSTELIIIM De Bary in Rost. Mon. p. 215, Cooke Myx. p. 53 

 (Etym. echinos echinus et sieleon manubrium, stipes). — Flocci 

 capillitii arcuati, apicP! peridiis orientes, ramis numerosis laterali- 



i bus, acute terminatis, liberis pra^diti. 



1. Echinostelium minutum De Bary in Rost. Mon. p. 215, f. 98. — i^^o 

 Peridiis globosis, nudis, albidis, discretis stipitatis, floccis arcuafis, 

 apice peridii orientibus ramis nonnullis apice acutis, liberis pr.p- 

 ditis; sporis coloratis, 7-8 jU, diam. 



Hab. in Frankfurt am Mein Germani?e. 



