Plate LXX. 
Fig. 328. CONFERVA BANGIOIDES. 
Colour. Dark and very glossy green. 
Substance. Very gelatinous ; soft ; sticky. 
Character of Frond. Long, dense tufts of close-clinging, slender, wavy, jointed threads {fila- 
ments), unbranched. Filaments rather finer than horse-hair. 
Joints. About twice as long as broad ; at first quite filled with light green colouring matter 
{endochrome), which afterwards contracts into a dark green spot in the centre. 
Measurement. From 3 to 6 inches long. 
Fructification, Minute seeds {zoospores) formed of the colouring matter in the joints, collected 
into a round central mass {sporidium), which in due time bursts out. 
Habitat. Breakwater, Plymouth. Torquay. Port Ballantoae, N. Ireland. On rocks, &c. 
near low-water mark. 
Now Hormotrichum bangioides. Like, but larger and longer than C. Young ana. Easily 
known from most Confervas by its glossiness and soft gelatinous feel. From C. collabens 
by its quite different colour. For other Confervas^ see Plate LXXII. It should be observed 
that such Confervas (and Lynghyas) as have been removed to the genus Hormotrichum are 
remarkable for their soft, gelatinous substance, the shortness of their joints, and the con- 
traction of their endochrome, at maturity, into a central spot. 
Fig. 329. ENTEROMORPHA INTESTINALIS. 
Colour. A full green ; but apt to fill with sand or dirt, and become discoloured. Fading to 
yellow and white. 
Substance. Membranaceous; thin. 
Character of Frond. Cylindrical ; tubular ; unbranched ; inflated like a delicate green bag ; 
widening upwards to a round broad end ; tapering to a mere thread at the base ; more 
or less wrinkled and curled throughout; several rising from a minute root ; attached, 
therefore, at first, but afterwards floating. 
Measurement. Often 2 feet or more long, but sometimes not more than an inch. Of every 
width between -jL of an inch and 3 inches. 
Fructification. Minute seeds {zoospores) formed of the colouring matter in the cells of which 
the frond-membrane is composed ; and in due time bursting through them. 
Habitat. Our coasts generally. In brackish ditches also ; and occasionally in inland waters. 
In a pond in the kitchen-garden at Bishop thorpe Palace, York. Very common. 
Narrow forms resemble E. compressa, but there is an unfailing rule for knowing them 
apart. E. compressa is always somewhat branched, however little. E. intestinalis is always 
perfectly simple. 
139 
