33. Ledum palustre, L.—Hook. Fl. Bor. Am. ii. p. 44.—var. α. angustifolium; and var. β. latifolium.

34. Azalea procumbens, L.—Hook. Fl. Bor. Am. ii. p. 44.

35. Rhododendron Lapponicum, Wahl.—Hook. Fl. Bor. Am. ii. p. 43.

36. Vaccinium Vitis Idæa, L.—Hook. Fl. Bor. Am. ii. p. 34.

Monotropeæ, Nutt.

37. Pyrola rotundifolia, L.—Hook. Fl. Bor. Am. ii. p. 46.

Boragineæ, Juss.

38. Lithospermum maritimum, Lehm.—Hook. Fl. Bor. Am. ii. p. 86.

Schophularineæ, Juss.

39. Castilleja pallida, Benth.—Hook. Fl. Bor. Am. ii. p. 105.