224 
FIFTEENTH REPORT. 
Juncus alpinus insignis Fries. Rich card son’s Rush. In damp sand along 
beach. 
LILIACEAE — LILY FAMILY. 
Zygadenus chloranthus Richards. Glaucous Zygadenus. In damp sandy 
ground near beach on the west side. 
Lilium philadelphicum andinum (Nutt.) Ker. Western Red Lily. 
Abundant especially at north end. One stem noticed with nine flowers. 
Erythronium americanum Ker. Yellow Adders-tongue. In rich shaded 
ground. 
Clintonia borealis (Ait.) Raf. Yellow Clintonia. In damp rich shaded 
ground. 
Smilacina racemosa (L.) Desf. False Spikenard. Common in open 
woods. 
Smilacina stellata (L.) Desf. Star-flowered Solomon's Seal. In rich 
shaded or open dry sandy ground. 
Smilacina trifolia (L.) Desf. Three-leaved Solomon’s Seal. In very 
wet shaded ground on the west side. 
Maianthemum canadense Desf. False Lily-of-the-Valley. Common in 
open woods. 
Streptopus amplexifolius (L.) DC. Clasping-leaved Twisted-stalk. In 
moist shaded ground on west side. F. W. Hunnewell 2nd. 
Streptopus roseus Michx. Sessile-leaved Twisted-stalk. In rich shaded 
ground. 
Polygonatum biflorum (Walt.) Ell. Small Solomon's Seal. Common in 
rich shaded ground. 
Trillium grandiflorum (MichX.) Salisb. Large-flowered Wake Robin. 
Frequent in rich woods. 
IRIDACEAE — IRIS FAMILY. 
[f ' ' 
Iris versicolor L. Larger Blue Flag. Occasional in damp open ground,, 
not far from the beach. 
Iris lacustris Nutt. Lake dwarf Iris. Reported by W. D. Whitney. 
Not noticed in 1912. 
Sisyrinchium angustifolium Mill. Painted Blue-eyed Grass. In a 
marshy place at north end. 
ORCH I D AC E A E — ORC 1 1 1 S FA M I LY. 
Cypripedium parviflorum Salisb. Smaller Yellow Lady's Slipper. In 
damp rich ground and on shaded bluffs. 
Cypripedium parviflorum pubescens (Willd.) Knight. Larger Yellow 
Lady’s Slipper. On rich shaded ground. 
Cypripedium hirsutum Mill. Showy Lady's Slipper. In damp shaded 
ground. Apparently rare. 
Habenaria bracteata (Willd.) R. Br. Long-bracted Orchis. Frequent 
in beech -maple woods. 
Habenaria flava (L.) Gray. Small Pale-green Orchis. In rich wet 
shaded ground on the west side. 
Habenaria hyperborea (L.) R. Br. Tall Leafy Green Orchis. In boggy 
shaded ground on the west side. 
