302 GEOLOGICAL SURVEY OF NEW JERSEY. 



streams, middle and northern counties. Quite plentiful on the 

 Kittatinny Mountains. 



LARIX, Mill. 

 Tamarack. Larch. 



L. laricina (Du Roi), B. S. P. (L. Americana, Michx.) 



In swamps, northern counties. Hudson : New Durham 

 Leggett. Bergen : Along Passaic River and at Closter Austin. 

 Passaic : Greenwood Lake Rudkin ; Cedar Pond, Bearfort Mt. 

 Britton. Morris : Budd's Lake Porter ; abundant between 

 Succasunna and Ironia Britton. Sussex : Near Hamburg 

 Rudkin ; between Andover and Waterloo, and near Sparta 

 Britton. Warren : Oxford Furnace Henry Race ; on Great 

 Meadows, and a large grove south of Green's Pond Britton. 



SUB-KINGDOM II. PTERIDOPHYTA. 



ISOETE.E. 



ISOETES, L. 



Quill-wort. 

 I. echinospora, Durieu, var. Braunii (Durieu), Engelm. 



In sandy bottoms of ponds and streams, in shallow water. 

 Sussex : Pond west of Branchville, and in Morris Pond Brit- 

 ton. Morris : Lake Hopatcong Porter. Ocean : In Toms 

 River Parker. 



I. riparia, Engelm. 



Camden : Gravelly shores of the Delaware River Parker. 

 I. Engelmanni, A. Br. 



Bergen : .Closter Austin. Sussex : In deep water, west side 

 of Lake Hopatcong Britton. Camden : Along C. & A. R. R. 

 four miles from Camden C. E. Smith. 



Var. gracilis, Engelm. 



Bergen : In the Passaic River near low-water mark F. 

 Ennis.* 



*See Engelmann, Trans. St. Louis Acad. Sci. iv. 384. 



