1 78 Rhodora [August 



slender and the panicle less ample, with a varying proportion of the 

 spikelets undeveloped and consisting of a pair of empty scales. The 

 remaining spikelets contain, as a rule, a single, perfect flower with a 

 pedicel of a second abortive flower. The glume of this perfect 

 flower is somewhat webby at the base and slightly pubescent on the 

 lower half of the marginal nerves and the midnerve, with the inter- 

 mediate nerves obscure or wanting — well known characteristics of 

 J^oa serotina. But a further and essential character of normal Foa 

 serotina is a spikelet with from two to four perfect flowers, while in 

 this woodland form, at least in all the specimens collected by the 

 writer, it is unusual and exceptional when a spikelet develops more 

 than one perfect flower. Spikelets with two perfect flowers occur, 

 however, occasionally. These match spikelets of normal Poa serotina 

 in every particular, and connect this perplexing variety with the 

 species. It should be added that the proportion of undeveloped to 

 developed spikelets varies greatly, depending apparently upon the 

 density of the shade. In open woodlands nearly all of the spikelets 

 may be developed and consist of one perfect flower and a second 

 rudimentary flower, as described above. Specimens were collected 

 on July 16, July 21 and August 6, 1903. The ordinary form of the 

 species was in full bloom about July 15. This woodland form is not 

 mentioned in the current standard manuals. 



Agrostis intermedia, Scribner. — This species is common in dry 

 woodlands in this vicinity and sometimes makes a dense growth in 

 the more open spaces and in clearings. At one of the New Haven 

 reservoirs there is, bordering the water, a narrow strip of recently 

 cleared land, where this grass has come in, to the exclusion of other 

 species. I collected specimens here on August 14, 1903, and 

 endorsed the sheet, "very abundant, enough for a good crop of hay." 

 On revisiting the spot a few days later, I found that the same idea 

 had occurred to the men employed about the reservoir. They had 

 cut and cured and were just hauling away a small load of hay, 

 weighing several hundred pounds, which was practically all Agrostis 

 intermedia. 



New Haven, Connecticut. 



PvROLA ASARiFOLiA, MicHx., var. incamata, n. comb. — P. rotun- 

 difoliay var. incarnata, DC. Prodr. vii (1839) 773. P. incamata, 



