(7) Sanicula marilandica L., sanicle. 



(7) Cryptotaenia canadensis DC, hone wort. 

 (5, 6, 7) Monotropa uni flora L., Indian pipe. 



(4) Chimaphila umbellata Nutt., prince's pine. 



(4, 6) Pyrola elliptica Nutt., shin leaf. 



(4) " secunda L., shin leaf. 



(5) Epigaea repens L., May flower; trailing arbutus. 

 (4, 5) Gaultheria procumbens L., aromatic wintergreen. 



(8) Sabhatia angularis Pursh. 



(8) Gentiana crinita FroeL, fringed gentian. 



(8) " Andrewsii Griseb., closed gentian. 



(6) Apocynum androsaemifoUum L., dogbane (u). 



(5) Asclepias tuberosa L., butterfly weed. 

 (2, 3, S) " syriaca L., common milkweed. 



(7) " phytolaccoides Pursh, poke milkweed. 

 (.0 Acerates viridiflora Ell., green milkweed. 



(5, 6) Cuscuta Gronovii Willd., dodder. 



(4, 5, 6) Phlox pilosa L., hairy phlox. 



(6, 7) " divaricata L., blue phlox. 



(5*) " bifida Beck., cleft phlox. 



(6) Polemonium reptans L., Jacob's ladder {u). 



(7) Hydrophyllum appendiculatum Mich., waterleaf. 



(6) Mertensia virginica Link., bluebells or Virginian cowslip (w). 



(6) Myosotis virginica BSP., small white forget-me-not. 



(4, 5) Lithospermum canescens Lehm., puccoon. 



(4*j 5) " Gmelini Hitchc, puccoon. 



(5) Monarda fistulosa L., wild bergamot. 

 (4> 5) " punctata L., horse-mint 



(6) Hedeoma pulegioides Pers., American pennyroyal. 

 (3> S) Physalis lanceolata Michx., ground-cherry. 



(3, S) " virginiana Mill., ground-cherry. 



(5) Linaria canadensis Dumont., toadflax. 



(6) Collinsia verna Nutt., blue-eyed Mary {u). 

 (5) Gerardia pedicularia L., false foxglove. 



(8) " purpurea L., purple gerardia. 

 (8) Castilleja coccinea Spreng., painted-cup. 



(5) Pedicularis canadensis L., lousewort. 



(6) Melampyrum lineare Lam., cow wheat. 



(8) Utricularia cornuta Michx., small bladderwort. 



(7) Epifagus virginiana Wallr., beech-drops. 



(6) Conopholis americana Wallr., cancer-root. 



(2, 3) Orobanche fasciculata Nutt., yellow cancer-root. 



(7) Galium Aparine L., bed-straw, cleavers. 

 (6, 7) " circaezans Michx., wild liquorice. 



(6, 7) " concinnum T. & G., shining bedstraw. 



(6, 7) Mitchella repens L., partridge berry. 



(6) Houstonia caerulea L., bluets (w). 



(4, 5) Campanula rotundifolia L., bluebell. 



(4) Linnaea borealis americana Rehder., twin-flower. 



II 



