HUGHLI-HOWRAH AND THE 24-PERGUNNAHS. 
335 
CLIII. — SCYTOAEMATAOEJE. 
730. Scytonema J. A. A g. 
* Scytonema aerugineo-cinereum Kg. 
Walls about Calcutta, common. 
* Scytonema aureum Meneng . 
Mud-banks of Hughli river. 
* Scytonema granulatum Mart. 
Salt-lakes, Calcutta. 
* Scytonema palmarum Mart. 
Within sheaths of palms, Botanic Garden. 
* Scytonema tomentosum Kg. 
Botanic Garden, Shibpur, 
* Scytonema Veillardi Mart. 
On walls, general. 
CLIV. — STIGOYEM ATACE JR. 
737. Fisclieria Kg. 
* Fisclieria tenuis Mart. 
Damp walls with northern exposure. 
CLV. — RIVULARSACEjE, 
738. Mastichonema Schwab e. 
* Mastichonema granulatum Mart. 
Stems of grasses in ponds and ditches. 
* Mastichonema caespitosum Kg. 
Stems of Sesbania in ponds and ditches. 
739. Rivularia C. A. Ag. 
* Rivularia Lens Meneng. 
In tanks, on V allisneria leaves. 
CLVI.— BACILLARIACEiE. 
740. Navicula Bory. 
*Navicula velox Kg. 
Matla in marshes. 
*Navicula cryptocephala Kg. 
Botanic Garden, Calcutta. 
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