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7. Chlorotheciuiu Pirottae Martel — In aquario R. 
Ilorti Bot. Romani Marsileae quadrifoliae radicibus caulibusve aliisque 
parlibus submersis adhaerens (legil. R. Pirotta sec. Martel). 
8. Cladopbora gloinerata L. var. fasciculata Küiz. 
— In pluribus fontibus, Roma (Martel). 
9. Chroolepus lageniferum Hildebr. — In foliis Sima- 
riibae officinalis in calidariis Hort. Bot. Padova (De Toni e D. Levi). 
10. Coleochaete orbicularis Pringsh. — In Lemna tri- 
sulca in aquario quodam Hort. Bot. Panispernae, Roma (Martel). 
11. Coleochaete scutata Brebiss. — In Ibliis Nehmbii in 
aquariis R. Hort. Panispernae, Roma (Martel). 
12. Conferva cinerea Rabenh. — In rivulis Hort. Rot. Pa- 
nispernae, Roma (Martel). 
13. Olocoeystis ampia Küiz. — In plantis aquaticis pr. 
Roma (Martel). 
14. Oloeoeapsa ealdariorum Rabenh. - In sphagno in 
calidariis Hort. Bot. Panispernae, pr. Roma (Martel). 
15. Grloeotlieee granosa Rabenh. — In vasis lloriferis in 
calidariis Hort. Bot. Panispernae pr. Roma (Martel). 
16. Oloeoeystis rupestris Lyngb. — In rupibus humidis 
ad Colles Albanos pr. Roma (Martel). 
17. Cloeotriebia Piisum Ag. var. saccata Rabenh. Cum 
aliis algis in aquariis Hort. Bot. Panispernae (Martel). 
18. Oonium pectorale Müll. — In aquariis Hort. Bot. Pa- 
nispernae (Martel) — Messina (Borzi sec. Martel). 
19. liyngfbya janthina Mont. — In lapide quadam fontis 
Sancti Peti% Roma (Martel). 
20. Cyngbya membranacea Kütz. — In lapidibus fon- 
tis cuiusdam pr. Villa Borghese, Roma (Martel). 
21. Hllesoearpus scalari» Massai. — In aquariis Hort. Rot. 
Panispernae (Martel). 
22. Miseboeoeens confervicola — In plantis aqua- 
licis Hort. Bot. Panispernae (Borzi sec. Martel) — Modena (0. Penzig). 
23. ? Mostoe ellipsosporum Desmaz. — Inter muscos in 
Hort. Bot. Panispernae (Martel) — In stillicidiis Aqueducti S. Bartolam- 
mei Genova (De Notaris in herb. sec. Martel). 
24. Slostoc rîvulare Kütz. — In rupibus humidis pr. « Coll 
Albani », Roma (Martel). 
25. Oedog^onium CaiidolleiL^ Clerc. — In aquariis Hort. 
Rot. Panispernae, Roma (Martel). 
