A HISTORY OF CORNWALL 



DESMIDIACE.S (continued) 



Cosmarium bioculatum, Br6b. W.C. 



Boeckii, Will. Bodmin 



Botrytis, Menegh. Penzance 



Brebissonii, Menegh. 



*Broomei, Thw. N.C. 



caslatum, Ralfs. Bodmin, Rough Tor 



*commissurale, Br6b. St. Just 



crenatum, Ralfs. W.C. 



var. subcrenatum, Rab. 



cristatum, Ralfs. N.C. 



cylindricum, Ralfs. W.C. 



discretum, Benn. Roche, St. Dennis 



erosum, Delp. Penzance 



galeritum, Nordst. W.C. 



*granatum, Br6b. 



Hammeri, Reinsch. 



laeve, Rab. 



*Lundelii, Delph. Mousehole 



margaritiferum, Menegh. W.C. 



melanospermum, Arch. Bodmin 



Meneghinii, Br^b., var. angulosum, 



Rab. Penzance 



*moniliforme, Ralfs. Penzance 



orbiculatum, Ralfs. 



ornatum, Ralfs. 



*Phaseolus, Breb. W.C. 



Portianum, Arch. 



pseudopyramidatum, Lund. W.C. 



var. stenonotum, Raddi. Penzance 



pyramidatum, Br6b. 



*quadrimammillatum, West & G. S. 



West. Lizard 



Regnesii, Reinsch. Penzance 



rectangulare, Grun. Bodmin 



reniforme, Arch. W.C. 



speciosum, Lund. N.C. 



sphaericum, Benn. 



tetraophthalmus, Breb. 



*tinctum, Ralfs. 



undulatum, Corda. 



Wittrockii, Lund. 

 Arthrodesmus convergens, Ehr. 



incus, Hass. 



octocornis, Ehr. 

 Euastrum affine, Ralfs. W.C. 



binale, Ralfs. 



crassum, Ktitz. 



var. Cornubiense, Benn. St. Dennis 



crenulatum, Benn. N.C. 



didelta, Ralfs. W.C. 



elegans, Kdtz. 



erosum, Lund. N.C. 



gemmatum, Brb. 



insigne, Hass. Lizard, Penzanct 



insulare, Wittr. N.C. 



oblongum, Ralfs., var. Cornubiense, 



Benn. Ma-wgan, W.C. 



pectinatum, Breb. Penzance 

 pulchellum, Breb. 



96 



DESMIDIACE.S: (continued) 



Euastrum *rostratum, Ralfs. W.C. 



verrucosum, Ehr. 

 *Euastropsis Richteri, Lagerh. Sennen ; 



previously found only in Norway 

 and Germany 

 Micrasterias denticulata, Ralfs. W.C. 



Jenneri, Ralfs. 



mucronata, Rab. Penzance 



papillifera, Breb. W.C. 



radiosa, C. Ag. 



rotata, Ralfs. 



truncata, Breb. 

 Staurastrum apiculatum, Br6b. Penzance 



alternans, Breb. 



*asperum, Br6b. 



*avicula, Br6b. 



bifidum, Br6b. W.C. 



brachiatum, Ralfs. 



brachycerum, Brb. Sennen 



brevispina, Brb. W.C. 



controversum, Brb. 



cristatum, Arch. 



*Cornubiense, Benn. Roche 



*cuspidatum, Brb. Penzance 



cyrtocerum, Brb. W.C. 



dejectum, Brb. 



*Dickiei, Ralfs. Penzance 



dilatatum, Ehr. W.C. 



dispar, Br6b. 



furcatum, Ehr. Penzance 



furcigerum, Brb. W.C. 



glabrum, Ralfs. 



gracile, Ralfs. 



granulosum, Ralfs. Crowan 



hirsutum, Breb. W.C. 



inconspicuum, Nordst. 



*lunatum, Ralfs. 



margaritaceum, Menegh. Pen- 



zance 



*monticulosum, Bieb. W.C. 



mucronatum. Penzance 



*muricatum, Brb. W.C. 



*muticum, Brb. 



orbiculare, Ralfs. 



paradoxum, Meyen. 



pilosum, Arch. Rough Tor 



polymorphum, Br^b. W.C. 



polytrichum, Perty. 



pterosporum, Lund. Penzance 



*punctulatum, Breb. W.C. 



*pungens, Brb. 



pygmaeum, Br6b. Penzance 



*sexcostatum, Brb. W.C. 



spinosum, Brb. 



*spongiosum, Br6b. 



teliferum, Ralfs. 



tetracerum, Ralfs. 



tumidum, Brb. 



vestitum, Ralfs. St. Just 



