22 MIDDLESEX FLOEA. 



CELASTRACEyC. STAFF-TREE FAMILY. 



Celasteus, L. 

 C. scandens, L. Eoxbuet Waxwokk. Climbing Bittee- 



SWEET. 



Eather common. June. 



sapindacEt^. soapberry family. 



Staphtlea, L. 

 S. trifolia, L. Bladdee-Kut. 

 Weston (Bigelow's Fl. Bost.) ; not since reported in Middlesex, but 

 found (1886) in ttie adjacent town of Needham, in Norfolk Co.. 

 May-June. 



-^SCULUS, L. 

 M. HlPPOCASTANUM, L. HOESE-CHESTNUT. 



Propagates itseU occasionally by seed. May-June. Int. from 

 Asia via Eu. 



Cahdiospeemum, L. 

 C. Salicacabum, L. 

 SomervUIe (C. E. Perkins). Adv. from the Southwest. 

 For description, see Wood's Bot. & Fl. 

 ACEE, Tourn. 



A. Pennsylvanicum, L. Striped Maple. 

 Concord (Minot Pratt) ; Ashby (L. L. Dame). Eare. May-June. 



A. spicatum, Lam. Mountain Maple. 



Concord, int. from Wachusett by Minot Pratt; Ashby (L. L. 

 Dame). The elevated region about Mt. Watatie seems to be the 

 only county station where this maple grows naturally. June. 



A. saccharinum, Wang. Bock Maple. Sugae Maple. 

 Not abundant. Apr .-May. 



A. dasycarpum, Ehrh. White Maple. 

 l/owell, Tewksbury, Bedford, et al. Not common native. March- 

 Apr. 



A. rubrum, L, Red Maple. Swamp Maple. 

 Very common. Apr. 



POLYGALACEyE. MILKWORT FAMILY, 



POLYGALA, Tourn. 

 P. sanguinea, L. 



Common. July-Aug. 



