178 FLORA OF MOUNT DESERT. Var. VULGARIS (With.), Thurb. RED-TOP. Meadows and fields; common. Naturalized from Europe C, B, through cultivation, and perhaps also indigenous. A. perennans (Walt.), Tuck. Frequent in damp shady places and by brooksides. Beech Mt. Notch; Deer Brook, Jordan Pond; Gilmore Brook; Little Harbor Brook Notch, and elsewhere (Rand); — Southwest Harbor (M. L. Fernald). It seems doubtful whether these northern plants belong to the true southern A. perennans. A form from woods south of Beech Mt. may be A. Novæ-Angliæ, Tuck. A. scabra, Willd. HAIR GRASS. Dry soil; common. A dwarf form growing in tufts in rock hollows and dry places is var. montanum (Torr.). Sargent Mt. (Greenleaf, Rand); — Western Mt.; White Beach, Great Pond (Rand). A. canina, L. Infrequent. Sargent Mt. (Greenleaf, Rand). CINNA, L. WOOD REED GRASS. C. pendula, Trin. Damp woods. Cold Brook; Little Harbor Brook valley; Beech Mt. Notch (Rand); — Seal Harbor (Redfield). A very robust form, head of Beech Mt. Notch (Rand). CALAMAGROSTIS, Adans. REED BENT GRASS. C. Canadensis (Mx.), Beauv. BLUE JOINT. Common in moist or wet ground from sea level to mountain summits. DESCHAMPSIA, Beauv. HAIR GRASS. D. flexuosa (L.), Trin. Common in dry places, especially on hills and mountains.