CATALOGUE OF PLANTS. 



115 



B *, stagnant pool, 



I. Engelmanni, Braun. 



Ponds and shallow water; immersed. 

 W. Quincy ; pool in Pine Tree Brook. 



Note. Two more species and as many varieties of Isoetes should 

 be found within our limits. Marsilia quadrifolia, L., with four- 

 parted leaves like an Oxalis should also be found in some of the 

 ponds and streams as it has been distributed many times from the 

 Cambridge Botanic Garden. It grew abundantly with Trapa natans, 

 L. some years ago in a pond near Highland Ave., Medford. 



Class II. BRYOPHYTA.f 



Division I. MUSCI. MOSSES. 

 (By Edward L. Rand.) 



The list of mosses here given is based mainly on the valuable 

 collections of Messrs. Edwin and Charles E. Faxon. As these 

 collections, however, were made mostly in the Blue Hills and 

 Stony Brook Reservations, the moss flora of the other Reserva- 

 tions is most imperfectly represented in the list, — in fact only 

 two species have been reported from the Beaver Brook 

 Reservation. 



The list of Sphagnaceae is arranged in accordance with the 

 articles of Dr. Carl Warnstorf in Vol. XV of Coulter's Botan- 

 ical Gazette. Synonyms, however, have been given when pos- 

 sible to facilitate reference to Lesqtiereux and James' " Mosses 

 of North America." The lists of Andreaaaceas and Bryacese 

 are arranged in accordance with the Manual of Lesquereux and 

 James just mentioned, in the absence of a standard work of 

 ready reference of a more recent date. 



Ordek I. SPHAGNACE/E. Peat Mosses. 



SPHAGNUM, L. Peat Moss. 



S. stricturn, Liudb. 



S. Qirgensohiiii, Russ. 

 B, rare. 



t The Hepaticoe have been omitted, owing to the illness of Miss 

 Cora H. Clark who was to have prepared the list. 



