92 FLORA OF MOUNT DESERT. Day); — Somesville (Annie S. Downs); — Seal Harbor (Red field, Lizzie Churchill); — Eden; Fernald Point (Rand). Ad- ventive from Europe. MEDICAGO, L. MEDICK. 110 M. LUPULINA, L. BLACK MEDICK. SNAILS. Sparingly introduced. Beach, Sea Wall (Rand); — Bar Har- br (Mary Minot). Adventive from Europe. ROBINIA, L. LOCUST-TREE. 111 R. Pseudacacia, L. COMMON LOCUST. Escaped from cultivation to roadsides. Southwest Harbor; Q, Somesville; Town Hill, etc. (Rand); — Seal Harbor (Redfield). Adventive from the Middle States. 112 R. viscosa, Vent. CLAMMY LOCUST. Escaped from cultivation. Roadside, Northeast Harbor (Red- field). Adventive from the mountains of the Southern States. DESMODIUM, Desv. TICK TREFOIL. 113 D. acuminatum (Mx.), DC. Rare. Clearing, Northwest Arm woods, Great Pond (Annie S. Downs). Perhaps introduced, as this species has not as yet been found elsewhere on the island. VICIA, L. VETCH. TARE. 114 V. SATIVA, L. COMMON VETCH, OR TARE. Common, especially on sea beaches. Naturalized from Europe. A very pubescent form with flowers often peduncled, Bar Har- b (Mary Minot). 115 V. Cracca, L. FREQ INATINE 90 T Frequent in fields. Southwest Harbor; Somesville, etc. (Rand); — Northeast Harbor (R. & R.); — Seal Harbor (Sara E. Boggs, Redfield); — Town Hill (Faxon & Rand); — Bar Har- b (Mary Minot, W. H. Manning). XC.