29 
3 A 
mens of d:fferent form and size were observed amongst other alge 
34 p thick 
Hab.: Burpengary, Thos. L. Bancroft. Also found in Europe. 
: TETRASPORA, Link. 
-Thallus gelatinous, membranous, or sub-membranous, in the 
beginning a short sac, afterwards expanded ; cells globose or angular, 
more or less distant, but associated in a single stratum into large 
families. Tegument thick, very rapidly diffluent into a homogeneous 
qucous. Division in two directions in the same plane.—Cooke’s 
British Freshwater Alg, 15. 
__, Prof. Moebius remarks:—‘“At Burpengary small fronds of undeter- 
mned form were found, which evidently belonged toa Tetraspora. The 
cells, grouped in fours, were 6-14 u in size. nly the questionable 
1 intricata, Berk. et Harv., is referred to Australia (Tasmania).’ 
_ Of the Tasmanian species above alluded to, Harvey says in Tasm. 
Mm, Vol. ii:, p. 842:—*« Letraspora intricata, Berk. and Harv.— 
Fronde decomposito-laciniata, laciniis angustissimis ramosis, ultimis 
“pilaribus intricatis, gonidiis quaternis, maculis ramulorum sub- 
Unlseriatis,”” 
Hab. : In the St. Patrick’s River ; 1830, Gunn. 
| seem 
 ‘“éments, the lesser ones containing often but a single row of quater- 
* Det la. Mr. Berkeley remarks that it is related to the other 
ee 7 bore much as Monormia is to the Nostocs. It approaches also 
- being satisfactori . ; 1g inch 
Po ae orily d d or fi d. The gonidiaare s¢55 inchin 
diameter. — We ne “et mara gure eg 2000 
Pte BOTRYOCOCCUS, Kuetz. 
: nee tee botryoid (or like a bunch of grapes), irregularly lobed, 
ak ee, involved in a thin parent membrane (?). Cells. ovoid or 
uA Pau united in families, which are densely packed within a thin 
vent tegument.—Cooke’s British Freshwater Alge, 17. 
bee eawni, Kuetz. Small, free swimming, green, at length 
Pree pallid or reddish-brown. Size: Cells, ‘01-0125 mm. 
_~*0m the Micro. Journ., 1870, p. 88, Dr. Cooke, l.c., gives the 
ering interesting extract :—‘ Specimens were found by Dr. re 
