118 SIXTEENTH REPORT. 



197. Allium Schoenoprasum L. var. sibiricum (L.) Hartm. Wild Chives. 

 Sheltered rock shore crevices and margins of rock pools: Scovill Point; Pas- 

 sage Island. 



198. Lilium philadelphicum L. Wild Red Lih'. Rock shore crevices and 

 heath mat, occasional; burn forest, abundant. 



199. Clintonia borealis (Ait.) Raf. Clintonia. Climax forest; bog forest. 



200. Smilacina trifolia (L.) Desf. Three-leaved Solomon's Seal. Bog 

 forest; sphagnum zone. Bog Succession. 



201. Maianthemum canadense Desf. Two-leaved Solomon's Seal. Cli- 

 max forest; bog forest. 



202. Streptopus amplexifolius (L.) DC. Twisted-stalk. Bog forest; brook 

 bank in climax forest. 



203. Streptopus roseus Michx. Pink-flowered Twisted-stalk. Bog forest; 

 climax forest. 



204. Trillium erectum L. Purple Trillium. Bog forest; climax forest. 

 *205. Trillium grandiflorum (Michx.) Salisb. Large White Trillium. 



"Flood plain of Washington Creek." Holt. 



Iridaceae. Iris Family. 



206. Iris versicolor L. Blue Flag; Fleur-de-Lis. Sedge zone, bog forest, 

 and marginal zone, of Bog Succession; sedge zone of Delta Swamp Succes- 

 sion. 



207. Sisyrinchium angustifolium Mill. Blue-eyed Grass. Rock shore 

 crevices; sand beaches. 



Orchidaceae. Orchid Family. 



*208. Cypripedium arietinum R. Br. Ram's-head, Lady's Slipper. Dr. 

 A. B. Lyons, in Beal. 



209. Cypripedium parviflorum Salisb. Smaller Yellow Lady's Slipper. 

 Bog forest : Sargent Lake. 



*210. Cypripedium parviflorum Salisb. var. pubescens (Willd.) Ivnight. 

 Larger Yellow Lady's Slipper. Holt. 



*211. Cypripedium hirsutum Mill. Showy Lady's Slipper. "Wet places 

 in woods; not abundant." Holt. 



*212. Orchis rotundifolia Pursh. Round-leaved Orchis. "Rare; tam- 

 arack forest." Holt. 



213. Habenaria bracteata (Willd.) R. Br. Wet place in climax forest: 

 Duncan Bay. 



214. Habenaria hyperborea (L.) R. Br. Rein Orchis. Sedge zone, Bog 

 Succession, common. 



215. Habenaria dilatata (Pursh) Gray. White Rein Orchis. Same habitat 

 as last. 



216. Habenaria clavellata (Michx.) Spreng. Sedge zone of Bog Succes- 

 sion: Forbes Lake. 



217. Habenaria obtusata (Pursh) Richards. Bog forest, abundant; also 

 climax forest. 



218. Habenaria Hookeri Torr. Heath mat in rock opening in climax for- 

 est: ridge northwest of Tobin's Harbor: one plant only. 



219. Habenaria orbiculata (Pursh )Torr. Climax .forest ; bog forest, rare. 



220. Habenaria psycodes (L.) Sw. Purple P'ringed Orchfs. Sedge zone of 

 Bog Succession, frequent. 



