162 Bulletin 187 



and upper Connecticut Valleys. Forma semiprostrata (Peck) 

 Blake. Summit of Mt. Mansfield, (Eggleston). 

 P. rubra (Du Roi) Dietr. (P. rubra Link; P. rubens Sarg.). Red 

 Spruce. Common, especially on rocky mountain sides. 



PINUS. Pine 



P. Bauksiaua Lambert. (P. divaricata Sudw.). Gray Pine, Jack 

 Pine. Monkton, (R. E. Robinson) ; Starksboro, (Priugle) ; Fairfax, 

 (Bates). But few trees at each station. 



P. resiuosa Ait. Red or Norway Pine. Dry, rocky soil; frequent. 



P. rig'ida Mill. Pitch Pine. Barren, sandy soil. Common in the north- 

 ern Champlain Valley and in the Connecticut River towns north 

 to Wells River. 



P. Strobus L. White Pine. Common up to 1000 feet altitude. 



THUJA. Arbor Vitae 



T. occideiitalis L. Commonly but wrongly called White Cedar. 

 Swamps and rocky banks; common in northern and central Ver- 

 mont, occurring in eastern Vermont south to Hartland and Wood- 

 stock. 



TSUGA. Hemlock 

 T. canadensis (L.) Carr. Rocky woods and swamps; common. 



TYPHACEAE. CAT-TAIL FAMILY 



TYPHA. Cat-tail 



T. aug'ustifolia L. Narrow-leaved Cat-tail. Marshes; occasional. 

 T. latifolia L. Common Cat-tail. Marshes; common. 



SPARGANIACEAE. BUR-REED FAMILY 



SPARGANIUM. Bur-reed 



S. americanum Nutt. (S. simplex, var. Nuttallii Engelm.). Bogs and 



muddy shores. Burlington, (Mrs. N. F. Flynn) ; Fairfield Pond, 



(Blake). 

 S. americanum Nutt., var. androcladum (Engelm.) Fernald & Eames. 



(S. simplex Huds., var. androcladum Engelm.; S. androcladum 



[Engelm.] Morong.). Bogs and shallow water; common. 

 S. angustifolium Michx. Shallow water in mountain ponds; frequent. 

 S. diversifolium Graebner. (S. simplex Gray's Manual, ed. 6, in part). 



Marshy borders of ponds and streams; frequent. 

 S. diversifolium Graebner, var. acaule Fernald & Eames. (S. acaule 



[Beeby] Rydb.). Essex Junction, Hinesburg Pond, Williston, 



(Blake). 

 S. eurycari>iiiii Engelm. Borders of ponds and rivers; frequent in 



western Vermont. 

 S. fluctuans (Morong) Robinson. (S. androcladum Morong, var. fiuc- 



tuans Morong in part). Floating in ponds; occasional. 



