302 
E. J. SALISBURY-BOTANICAL OBSERVATIONS. 
Desmidiace^s. 
Netrium digitus (a) 
Closterium costatum 
C. striolatum ( a) 
C. dianae (a) 
C. incurvum ( ff ) 
C. venus (r) 
C. Leibleinii (/) 
C. moniliferum (a) 
C. malinverianum (r) 
C. littorale (r) 
C. cornu (r) 
C. toxon ( r) 
C. pronum (r) 
C. Kiitzingii (ff) 
Other 
Chlorophyce^l 
(Edogonium sp. 
Bulbochcete sp. 
XJlothrix sp. 
Chaetophora incrassata 
Mougeotia sp. 
Zygnema sp. 
Spirogyra nitida 
S. bellis 
Eudorina elegans 
Ankistrodesmus falcatus 
var. acicularis 
var. mirabilis 
Nephrocytium lunatum 
Tetraedron regulare 
T. trigonum 
T. enorme 
Closterium rostratum 
Pleurotaenium truncatum (a) 
P. Ehrenbergii (/) 
Euastrium bidentatum (r) 
Cosmarium subcucumis 
C. quadratum 
C. humile ( r ) 
C. formulosum (a)- 
C. tetraophthalmum (a) 
C. botrytis (a) 
Staurastrum hexacerum 
(3- and 4-armed) 
Hyalotheca dissiliens (a) 
Al am . 
Dictyosplieerium Ehrenbergianum 
Glceocystis infusionum 
G. gigas 
HETEROKONTiE. 
Chlorobotrys regularis 
Opkiocytium majus 
0. cochleare 
Tribonema bombycinum 
T. affine 
Myxophyce^l 
Nostoc sp. 
Anabsena sp. 
Lyngbya Martensiana 
Oscillatoria tenuis 
Chroococcus turgidus 
Trans. Hertfordshire Nat. Hist. Soc., Vol. Xi V, Part July, 1912. 
