228 " 



m 



12. Staurasfrvm' sejrcostatnm BrSb,, cellnlis e dorso sex- 

 costatis, e latere or1iicularibas> snperfieie (striata?). — 

 Br^h, in lUt. {eam icoue) (1839). 



i 



13. Staurastrum cantroversum Breb^^ cellalis e dorso qua* 

 driradiatis, ratliis Irnncatis, Bpinnloso-denticulatis, mcnr- 

 Tis, coutrorersis, e latere fusiformibns, introrsnm curvatis, 

 snperfieie striata. — Br4bA in litt, (cam icone) (1839). 



(V. s.) 



14. Staurastrum muticum- Sribm 3 cellnlis tri- — qninqnc- 

 lobatis, lobis rotundatis, e latere ellipticis^^ntrinqne rotna- 

 datis^ Boperficie laevi, — Br4h* in litt. (cnm icone). — 

 BinatelU mntica \Br^&. A1^. Fal. p. 57^ n. 6. PK YIII. 

 (1835). ^— Stanrastnim trilobnm J^enegh. 1, c« p. 18, 



(Y.v.) 



15. Staurastrum hacillare Br4h.j cellnlis e dorso tri- 

 quadri-radiatis^ radiis apice capitatis, e latere extrorsnm 

 innnlatis, apicibns itldem capitatis, snperfieie laevi. — 

 BrSh, in Utt. (cum icone). -^ Binatella bacillaris Br&b* 

 Aig. Fal. p. 66. (1835). 



*** Species desciacentes, 



16. Siawrastrum eonvergens — , gigantenm; cellaii's e dergo 

 linearibns, ntrinqne mncrone conico longo acnmioatis, e 

 latere elHpticis, rancronibns convergenfibas, snperfieie laevi. 

 — Arthrodedmus couTergena Ehr, Infns. p. 152. n. 176. 

 T. X. f. XVIII. ( 1838 ). — Cosmariom biconie Br^b. in 

 litt. (earn icone). , 



17. Staurastrum Incus — , cellnlis e dorso linearibns, me- 

 dio leTiter compressis, ntrinqne mncrone longo, cenico, . 

 scnto aeaminatis, e latere extrorShm Innnlatis, mneronibss 

 dirergentibas , superficie laeri. -U Coemarinm Inevs Fr/fr. 

 in litt. (cum icone) (1839). ^ 



