334 HARPER 



Clematis crispa Siphonychia Americana 



Dioscorea villosa Paronychia riparia 



Mayaca Aubleti 

 Lycopodium pinnatum 



About two-fifths of the vines are Leguminosae. In the above list 

 I have made no distinction between twiners and tendril-climbers ; 

 and the distinction between climbing and trailing vines is not 

 always a sharp one. Galactia regularis and perhaps others in 

 the list may behave in either way, according to opportunity. 



Among the vascular plants the only epiphytes are Epidendrum, 

 Dendropogon, and Polypodium; and the only parasites Conopholis 

 (which scarcely belongs to our flora), Phoradendron, and. the two 

 species of Cuscuta. \ 



The remaining vascular plants, about 550 in number, are 

 nearly all ordinary terrestrial herbs, most of them perennial. 



Flowering and dissemination. I have not yet consolidated, 

 the data in regard to time of flowering, colors of flowers, and 

 modes of dissemination for the whole flora as I have for the 

 several habitat-groups, but some statistics of this kind for the 

 four largest families, Compositse, Leguminosae, Cyperaceas, and 

 Gramirteae, may be of interest. 



The phaenological diagrams subjoined show' in a striking 

 manner how autumnal flowers predominate among the Com- 

 positae and Gramineae in our territory, just as in other parts of 

 temperate Eastern North America. The diagram for Cyperaceae 

 shows little of interest except a decided "hump" in April, 

 which is due almost entirely to the genus Car ex. The other 

 genera are mostly summer- flowering. The similarity of the 

 Leguminosae diagram to that for Cyperaceae is striking, but at 

 present unexplainable. 



In the Compositae there are more yellow flowers than any 

 other kind, as we should expect from experience. 25 species 

 have yellow flowers, 21 purple, 16 white, 10 yellow and dark 

 purple, 4 cream, 4 blue and yellow, and the remaining 8 various 

 colors more difficult to classify. Too little is known about the 

 dissemination of our Compositae. At least 39 species, and 

 probably a majority of the whole 88, have wind-borne achenes, 

 and three or four, if not more, are " tonoboles, " but the remainder 

 have not been sufficiently studied. 



