THE GEELONG KATITBALIST. 47 
To describe why the various genera and species of Algas are so 
named is beyond ine ; I will, however, offer a few suggestions thereon. 
I have mentioned that the names of the classes, orders, genera and 
species are chiefly of Greek derivation. Beginning with the lowest 
forms, the Chlorospermege, we have the order Ulva from Ul, Celtic 
word for water. In this order we have the genus Lactuca (Latin 
for lettuce). 
Another order is named Covfervacecc (frond's filamentous) with a 
genus Cladophora (branch-bearing) and a species Feredayi (named 
after a Tasmanian clergyman). Belonging to the same order is the 
genus Enteromorpha (intestine-like). Another order is named 
Siphon acecB^ (the Alga3 being tubular), with its rare genus Bryopsis^ 
(from Bruon, moss), and its choice species, Plumosa^ fairly common at 
Geelong. 
Passing to the RJiodospermeo:^ we have the order Ceramiece (from 
their waxen appearance), with the genera CaUit/iamnion, (beautiful 
little shrub), Ptilota (feather- weed), Sjpyridea (basket-weed), JRhodo- 
pJiyllis (rose-leaved), Schizi/menia (cloven membrane), Kalymenia 
(beautiful membrane), Rhodymenia (red membrane), and Dasya 
(hairy). 
Some genera and a large number of species are named in honour 
of individuals, e.g. genus Griffithsia, after Mrs. Griffiths, Torquay; 
Ballia^ after Miss Ball; Laurencia, after M. de la Lauriencia, a French 
naturalist; Delesseria, in honor of Mons. Dclessert, a French botanist 
and naturalist. 
Many are named after Harvey, Agardh, Mueller, and Wilson, all 
prominent botanists and algologists. 
The lecturer then sliewed several specimens to illiistrate tlu- 
system of naming and classifying, pointing out the appropriateness of 
the names given, notably Hypnea Eplscopahs, from hypnum moss, 
and JEpiscopalu, with reference to the resemblance of the developing 
frond to a Bishop's staff; and Dictyurus Quercifolius, from diktuon^ a 
fishing net, quercus, an oak, and folium a leaf. He then made some 
impromptu remarks in the course of which he recommended to 
beginners Mr. Hibberd's " Sea-weed Collector," and " Common Sea- 
weeds," by Mrs. Lane Clark, and concluded with the quotation : — 
" Not lost the time in sea-side ramble spent ; 
Braced is the frame, and mental health is gained : 
Knowledge obtained of H im who made the deep, 
And blissful love acquired of Nature's works." 
