86 BULLETIN OF THE 



ing of all the individuals of any given species. In all cases, how- 

 ever, one or more individuals were actually seen in flower and suf- 

 ficiently advanced for collection, otherwise no note was" taken. The 

 Carices of course had not advanced to developed perigynia, and 

 many plants whose inflorescence is centrifugal or centripetal, or 

 which develop fruit while retaining their flowers, should be looked 

 for at a later stage. 



Autumnal Flowering. 



One of the most interesting peculiarities of the flora of this vicin- 

 ity is that of the second-blooming of vernal species, which in most 

 cases takes place quite late in the fall. [See Field and Forest, 

 April-June, 1878, Vol. Ill, p. 172.] In addition to the seven species 

 observed and published in 1878, I have noted more than as many 

 others manifesting this habit, and it is probable that still others will 

 yet be added. The following is a list of those, thus far recorded 

 with the dates at which they were observed and which may be com- 

 pared with those of their regular vernal period : 



Ranunculus abortivus, var. micranthus, November 28, 1875. 



Cardamine hirsuta, October 3, 1880. 



Viola pedata, var. bicolor, September 22, and December 8, 1878 



Viola striata, September 10, 1876. 



Fragaria Virginiana, September 22, 1878. 



Rubus villosus, September 22, and October 27, 1878. 



Louicera Japonica, October 13, 1878. 



Houstonia purpurea, October 13, 1878. 



Houstonia purpurea, var. angustifolia, September 12, 1880. 



Houstonia cserulea, September 7, 1879. 



Vaccinium stamineum, October 13,1878. 



Rhododendron nudiflorum, October 13, 1878. 



Sabbatia angularis, October 27, 1878. 



Phlox divaricata, October 16, 1873. 



Echium vulgare, October 8, 1880. 



Veronica officinalis, October 8, 1873. 



Agrostis scabra, November 12, 1876. 



To this list of seventeen should perhaps be added Stellaria pubera, 

 which instead of a vernal and autumnal period, has two vernal 

 periods as described under that species in the systematic notes. 



