The Diatomaceæ of Philadelphia and Vicinity

by Charles S. Boyer

PLATE 28

Fig. Page PINNULARIA 1 Pinnularia nobilis Ehr. [103] 2 Pinnularia major var. pulchella n. var. [102] 3 Pinnularia dactylus Ehr. [103] 4 Pinnularia major (Kuetz.) Wm. Sm. [102]

Fig.		Page
PINNULARIA
1	Pinnularia nobilis Ehr.	[103]
2	Pinnularia major var. pulchella n. var.	[102]
3	Pinnularia dactylus Ehr.	[103]
4	Pinnularia major (Kuetz.) Wm. Sm.	[102]