176
THE FRESHWATER ALGAE OF ESSEX.
BOTRYDIACEAE.
Botrydium granulatum, Linn. Cooke, t. 65. In swampy
places, Kelvedon (E.G.V.).
VAUCHERIACEAE.
Vaucheria aversa, Hass. Cooke, t. 47, f. 1. In ditches,
Kelvedon (E.G.V.).
V. sericea, Syngb. Cooke, t. 47, f. 4. In pond, Messing
(E.G.V.).
V. dillwynii, Ag. Cooke, t. 47, f. 9, 10. On the ground,
Kelvedon (E.G.V.).
V. sessilis, Vauch. Cooke, t. 48, f. 1. Var. ornithocephala,
Hass. In stagnant water, Kelvedon (E.G.V.). Var. repens, Hass.
On the ground, Royston (A.H.H.) ; Kelvedon (E.G.V.).
V. geminata, Vauch. Cooke, t. 48,, f. 6, 7. In ponds, Kel-
vedon (E.G.V.). Var. racemosa, Vauch. In ditches, Kelvedon
(E.G.V.). Var. ovoidea, Hass. In ditches, Kelvedon (E.G.V.).
V. hamata, Vauch. Cooke, t. 48, f. 10, 11. In ditches, Kel-
vedon (E.G.V.).
V. terrestris, Vauch. Cooke, t. 49, f. 1, 2. On damp soil,
Kelvedon (E.G.V.).
ULVACEAE.
Prasiola crispa, Kutz. Cooke, t. 50, f. 1. On damp ground,
Kelvedon (E.G.V.).
Enteromorpha intestinalis, Linn. Cooke, t. 51, f, 1, 2.
In ditches, Kelvedon (E.G.V.) ; Walthamstow.
CONFERVACEAE.
Microspora floccosa, Ag. Cooke, t. 53, f. 3. In stagnant
water, Birch Holt; Messing ; Feering ; Kelvedon (E.G.V).
M. vulgaris, Rabh. Cooke, t. 53, f. 2. In ditches, Snares-
brook.
M. fugacissima, Ag. Cooke, t. 53, f. 1. In ditches, Wal-
thamstow.
Chaetomorpha linum, Roth. Cooke, t. 54, f. 2. In ditch,
Dovercourt (E.G.V.).
Conferva bombycina, Ag. Cooke, t. 53, f. 4. In ditches,
Snaresbrook.
Cladophora crispata, Roth. Cooke, t. 55, f. 3. In pools,
Kelvedon (E.G.V.).
C. glomerata, Linn. Cooke, t. 56, f. 1. In streams, Kel-
vedon (E.G.V.) ; Walthamstow.