— 59 — 
26. Oeclogonium erastsiiisciilum Wittrock — \n la- 
bris ad plantas aquaticas Hort. Bot. Panispernae Roma (Martel). 
27. Oedogonium eyathigerum Wittrock — In quibu- 
sdam labris Hort. Bot. Panispernae, Roma (Martel). 
28. Oscillaria tenais Ag. var. sordida Kütz — In 
fontibus fori S. Pétri, Roma (Martel). 
29. ^scillaria tennis Ag. var viriMs {VaucL) — In 
terra humida pr. Colosseo, Roma (Martel). 
30- Pleetoneiua mirabile (Dillw.) Born. et Thur. — In 
rupibus « Cascata delle Marmore » pr. Roma (Martel). 
31. Polycystis purpnraseens A. Br, — In plantis putri- 
dis in fossis a Acque Albuley> pr. Roma (Martel). 
32. Üpirog^yra graeilis Massai, var. flaveseens Babenh. 
— In acquariis Hort. Bot. Panispernae (Martel). 
33. l§itaurospermum graeillimnm Massai. — Cum 
aliis algis in aquariis Hort. Bot. Panispernae (Martel). 
34. ISeytonema graeillimnm Kütz. — In rupibus hu- 
midis pr. « Cascata delle Marmore Roma (Martel). 
35. l§Ipiroi^yra Grevilleana (Hassal.) Kütz. — Villa Bor- 
ghese pr. Roma (Martel). 
36. ISpirulina lenneri (Hass). Kütz. — Cum Closterio linea, 
10 et Leibleinii nec non cum Oscillariis et diatomaceis in fossis pr. Pa- 
dova (DeToni e D. Levi). 
37. I!$pirulina oseillarioides Turp. — Inter Oscilla- 
i-ias ad «Acque Albule» (^Martel). 
38. IJlothrix <§»tag^norum Babenh. — In quondam aqua- 
rio Hort. Bot. Panispernae, Roma (Martel). 
39. IJroeocens insignis Massai. — In rupibus madidis cum 
speciebus Chroolepi et Stigonematis pr. Tivoli (Martel). 
40. Vaueheria ornithoeephala Massai. — In aquariis 
Hort. Bot. Panispernae (Martel). 
41. Vaueheria terrestris Lyngb. var eireinnata 
Kütz. — In terra humida Hort. Bot. Panispernae (Martel). 
42. Vaueheria uneinata Kütz — In terra humida Hort 
Bot. Panispernae (Martel). 
43. Zonotrichia calearea Babenh. — In fonte quadam 
Hort. Bot. Panispernae (Martel). 
