456 Phycomy.cetfe, Saprolefmiaceee, Blastocladia. 



circiter 1 mm. longis, 4-5 u. crassis; zoosporis late ovalibus v, 

 oblongis, 20-30 « 18-20. 



Hah. in ramentis aqua submersis in America boreaii. 



SAPROMYCES Fritsch, Oest. B. Z. 1893, p. 420; Thaxt. Bot. Gaz. 

 1896, p. 329, (Etym. sapros putris et myces fungus) Ncegelia 

 Reiusch Jahrb. Wiss. Bot. 1876, p. 289. — Syll XI, p. 245. — 

 Ncegeliella Schrot. Pflanzenfam. I, p. 103. — Affinis Araiosporce, 

 Zoosporangia oblonga, levia. Zoosporse ut in Araiospora. Oogonia 

 umbellatim disposita, piriformia ; oosporae solitarise. Antheridia 

 elongata, curvata. Planta nunc androgyna, nunc heterogyna. 



1. Sapromyces androgynus Thaxt. Bot. Gaz. XXI, 1896, p. 329, nss 

 tab. XXII, fig. 16-19. — Oogoniis piriformibus, 27-30^35-50; 

 oosporis sphaericis, 20-26 w. diam., hyalino-pachydermis ; zoospo- 

 rangiis circiter 75^26; hyphis antheridialibus juxta oogoniorum 

 basim oriundis. 



Ilah. in ramis aqua submersis, America bor. 



2. Sapromyces Reinschii (Schrot.) Fritsch 1. c, Thaxt. 1. c. Ncegeliella 1739 

 Schrot. 1. c. — Verticillato-ramosa ; sporangiis elliptico-oblongis 

 verticillatim quaterno-senis; sporis 6 fx. long , elUpsoideis ; sporia 

 aliis (oosporis?) globosis, crassiuscule tunicatis, 11-17 a. diam. 



Hah. in caulibus putridis Visci etc. aqua immersis in Germania, 

 Amer. bor. 



3. Sapromyces dubius Fritsch 1. c. Ncegelia spec. II Reinsch, Fisch. 1730 

 Phycom. p. 378. 



Hah. in Algis viridibus in Germania. — Forte status junior 

 picficedentis. 



4. Sapromyces elongatus (Cornu) Thaxt. 1. c. Rhipidium elongatum 

 Cornu, Syll. VII, p. 268. 



BLASTOCLADIA Reinsch — Syll. XI, p. 245. 



1. Blastocladia ramosa Thaxt. Bot. Gaz. 1896, p. 50, tab. III, 1731 

 fig. 14-16. — Axi primario subcyliudrico, 14-20 ,a. diam., basi 

 divisionibus rhizomatoideis dense fasciculatis, tenuibus, ramosis 

 aucto, sursum copiose irregulariter v. subdichotome ramoso ; spo- 

 rangiis in ramulorum apicibus oriundis, late ovalibus, punctatis, 30 

 « 15 ; sporangiis perdurantibus terminalibus, rotundatis, basim 

 versus gradatim angustioribus et truncatis, circiter 30 ^ 11. 

 Hab. ad ramos demersos in paludibus, Maine Anier. bor. 



