VaMchsn//
2841
VAUCHERIA cæspitosa.
Tufted Vaucheria.
CRYPTOGAMIA Algæ Inarticulate.
Gen. Char. Threads tubular, continuous. Membrane
hyaline, filled with green granules. Fruit homogeneous
coniocystæ.
Spec. Char. Coniocystæ binary, terminal, with an
intermediate horn-shaped process.
Syn. Vaucheria cæpitosa, Agardh Syn. 48. DeCand.
FI. Fr. v. 2. 63. Lyngb. Hyd. Dan. 81. t. 23.
Hook. FI. Scot. Pt. 2. 92. Agardh Syst. Alg.
174. Duby Bot. Gall. 974. FI. Dan. t. 1726.
ƒ. 2. Grev. Alg. Brit. 194. Hook. Eng. FI. v. 5.
Pt. 1. 321.
Conferva amphibia. Dillw. t. 41.
Ectosperma cæspitosa, Vauch. Hist. 28. t. 2. f . 4.
I n springs, pools, &c. near the bank,and on the wood-work
of mill dams ; also on the soil of damp gardens, with the habit
of V. Dillwynnii. Forming dense spongy tufts when
growing in water, with a rich velvety green surface ; a
thin stratum when spreading over soil. Threads dichotomous
or furnished with secund branches, dividing above
into two very short stipitiform branchlets, each bearing a
single depressed subglobose vesicle, with an intermediate
straight or curved colourless hornlike process. In age the
vesicles and their contents become colourless with the exception
of a brownish spot in the centre.
Nothing can be more different than the habit of the
aquatic form of this species from that which grows on