CATALOGUE OF PLANTS. 153 HABENARIA, Willd. 527 H. tridentata (Willd.), Hook. Common in moist ground. S. 528 H. hyperborea (L.), R. Br. [illegible] Rare. Swamp, Northeast Harbor (Rand);—trail between [illegible], Jordan Pond and Northeast Harbor (Redfield). Ca., qc Md., T 529 H. dilatata (Pursh), Gray.* Frequent in swampy ground. C., ic., [illegible] Br, qR 530 H. obtusata (Pursh), Richardson. Deep, mossy woods; infrequent. Sargent Mt. Gorge; woods, head of The Barcelona meadow; Cold Brook (Rand);—Seal Harbor (Redfield);—Little Cranberry Isle (Redfield, Harriet A. Hill). [illegible] 531 H. Hookeri, Torr. † Rare. Woods near Otter Creek (Helen B. Walley). Rd., L., Bic† 532 H. orbiculata (Pursh), Torr. Deep woods; infrequent. Sargent Mt. Gorge; Northwest [illegible] Arm woods (Rand);—woods, southern end of Great Pond (An- nie S. Downs);—Seal Harbor (Redfield, Lizzie Churchill); —Little Cranberry Isle (Redfield, Harriet A. Hill). 533 H. fimbriata (Ait.), R. Br. PURPLE-FRINGED ORCHIS. Common in swampy ground. A small-flowered form of this species has sometimes been taken for H. psycodes, a species not as yet discovered on the Island. Forma albiflora. Flowers pure white. Hadlock Upper Pond (B. E. J. Gresham); —Long Pond meadows (Redfield). CYPRIPEDIUM, L. LADY'S SLIPPER. 534 C. spectabile, Salisb. SHOWY LADY'S SLIPPER. Swamp, Northeast Harbor (Rand). [illegible] * Not of Hooker. See A. Gray, Ann. Lyc. N. Y., iii. 231. † H. Hookeriana, Torr., is the more correct name.