19C4J Woodward, — Two Connecticut Grasses 177 



TiPULARiA DISCOLOR Nutt. As Gray's Manual calls this orchid 

 "very scarce" and Britten and Brown say it is "rare and local," I 

 was greatly surprised to find it quite common in almost every piece 

 of woodland I visited south and east of Easton. In fact it was 

 decidedly the most common of the seven species of orchids found. 

 Although some little time was spent in watching for insect visitors, 

 none were seen. 



Desmodium I'AUCiFLORUM DC. This plant was found in wood- 

 land close beside the glade where the Clinton fern was collected, a 

 locality apparently considerably east of its previously recorded range. 

 The tiowers were perfectly pure white, in striking contrast to other 

 Desmodiums. 



Pluchea petiolata Cass. This species is not very rare in the 

 woodlands south of Easton, a place much north of its previously 

 recorded range. The tirst specimens were found beside the public 

 highway, in woodland, and were at once distinguishable from other 

 Plucheas by the longer petioles, higher stems and more convex inflo- 

 rescence ; the general appearance was that of depauperate speci- 

 mens of Eupatorium purpureiim L. Other specimens were after- 

 wards found in similar situations, moist but not swampy ground in 

 woodland and not near water. 



In conclusion, I may add that specimens of these five species have 

 been deposited in the Gray Herbarium. 



Olivet, Michigan. 



NOTES ON TWO CONNECTICUT GRASSES. 



R. W. Woodward. 



Poa serotina. — In the summer of 1902, I noticed, at New Haven, 

 Connecticut, a peculiar grass growing for several hundred feet 

 along the edge of a shaded woodland road which leads up out of a 

 wet meadow. In 1903 the same grass was observed in about the 

 same abundance beside this road, and also at several other stations, 

 all of which were in more or less shaded situations. It proved to be 

 a woodland form of Poa serotina, Ehrhart, occurring in dry places, 

 and showing marked variation from the species. The culm is more 



