1908] Knowlton,— A trip to Killingly 165 
Pursh, P. lanceolatum Pursh, and P. muticum Pers., all these closely 
allied species occupying the same territory, and showing no choice in 
the matter of soil or moisture. Later in the day we found the fourth 
New England representative of the сепи, P. incanum Michx., grow- 
ing in dry rocky woods. The prevailing alder in this meadow and 
throughout the town seems to be Alnus incana Willd., for I did not 
see any other during the entire day. Calamagroóstis N uttalliana Steud. 
also flourished in this meadow. 
The road led from the lowland up the side of Break Neck Hill, and 
wayside glimpses of Circaea alpina L., the true Viola blanda of Will- 
denow, and big clumps of Collinsonia canadensis L. led to an investi- 
gation of the rich woods near by. The Collinsonia is a frequent plant 
throughout the region in such woods, and its presence was not unex- 
pected, but further search showed an abundance of Allium tricoccum 
Ait., in excellent fruit, Adiantum pedatum L., Galium lanceolatum 
Torr., Eupatorium ageratoides L., Sanguinaria canadensis L., Trillium 
cernuum L., Uvularia perfoliata L. and mountain laurel. 'The woods 
were largely red oak, chestnut, cherry birch and sugar maple. Part 
had been cut over within ten years, while the other part had not felt 
the axe for at least forty, but there was little difference in the herbaceous 
flora beneath their shade. | 
Further up the hill were open pastures and clearings, with ledges 
which gave fine views of neighboring villages, and the level sky-line 
of the Windham county hills. Over the dry ledges grew Woodsia 
obtusa Torr. and the more common ebony spleenwort, while in moist 
shaded crevices grew Asplenium Trichomanes L. "Тһе dry clearings 
were full of Gerardia quercifolia Pursh in full bloom, very tall and 
handsome. С. flava L., С. pedicularia L. and С. tenuifolia Vahl 
were also present, but only the latter was abundant. G. paupercula 
(Gray) Britton we had found in our first swamp. Along with these 
were some very fine specimens of Hieracium Gronovii L., two or three 
feet high, and on one ledge in the hot sunshine grew Muhlenbergia 
glomerata Trin., undismayed by changed environment. 
Down beyond the clearings was another stretch of rich woods, 
colder and more moist than the first, and here came the greatest 
surprises of the day. First of all was Habenaria Hookeriana Gray, 
with broad flat leaves and spikes of appressed green flowers, and 
fruit. Further search for this revealed as its neighbors Н. bracteata 
R. Br. and Corallorrhiza multiflora Nutt., also well fruited, and several 
