156 SIXTEENTH REPORT. 



Habenaria bracteata (Willd.) R. Br. Long Bracted Orchis. — Occasional 

 in dam]:) open woods and thickets. 



Habenaria flava (L.) Gray. Tubercled Orchis. — Occasional in damp 

 places. 



Habenaria hyperborea (L.) R. Br. Tall Leafy Green Orchis. — Occasional 

 in peat bogs and wet woods. 



Habenaria dilatata (Pursh.) Gray. Tall White Bog Orchis. — Occasional in 

 wet meadows, bogs, and wet open woods. Noticed in particular near a 

 pond east of Point Edward. 



Habenaria clavellata (Michx.) Spreng. Small Green Wood Orchis. — Oc- 

 casional in rich moist woods near Forest. .Newton Tripp. 



Habenaria hookeri Torr. Hooker's orchis. — Occasional in dry or damp 

 open woods. 



Habenaria orbiculata (Pursh.) Torr. Large Round-leaved Orchis. — Oc- 

 casional in pine woods jiear Port Franks. Newton Tripp. 



Habenaria lacera (Michx.) R. Br. Ragged Fringed Orchis. — Occasional in 

 moist open or shaded ground. 



Habenaria leucophaea (Nutt.) Gray. Prairie White Fringed Orchis.— r 

 Abundant on the delta islands of St. Clair River. Seldom noticed elsewhere. 



Habenaria psycodes (L.) Sw. Smaller Purple-fringed Orchis. — Occasional 

 in swam]^s and wet meadows. 



Pogonia ophioglossoides (L.) Ker. Rose Pogonia. — Formerly very abun- 

 dant in wet and boggy places near Sarnia. Becoming scarce on account of 

 drainage and fires. 



Calopogon pulchellus (Sw.) R. Br. Grass Pink. Calopogon. — Frequent 

 in boggy and very wet places. 



Spiranthes gracilis (Bigel.) Beck. Slender Ladies Tresses.— Occasional 

 in dry and sandy ground. 



Spiranthes lucida (H. H. Eaton) Ames. Wide-leaved Ladies' Tresses. — 

 Moist places near Lake Huron Shore. Newton Tripp. 



Spiranthes cemua (L.) Richard. Nodding Ladies' Tresses. — Common in 

 bogs and wet ground. 



Spiranthes romanzofiana Cham. Hooded Ladies' Tresses. — One specimen 

 found in a very wet and swampy place north of Sarnia. Apparently rare. 



Epipactis repens ophioides (Fernald) A. A. Eaton. Lesser Rattlesnake 

 Plantain. — Occasional in dry ground among pines near Lake Huron shore. 

 Newton Tripp. 



Epipactis pubescens (Willd.) A. A. Eaton. Downy Rattlesnake Plantain. 

 ■ — Occasional in dry ground among pines. Newton Tripp. 



Corallorrhiza trifida Chatelain. Early Coral-root. — Occasional in tam- 

 arack swamps. 



Corallorrhiza maculata Raf. Large Coral-root. Frequent in rich woods 

 and thickets. 



Liparis loeselii (L.) Richard. Fen Orchis. — Occasional in damp prairie- 

 like ground on the delta islands of St. Clair River and near Port Franks. 



Aplectrum hyemale (Muhl.) Torr. Adam-and-Eve. Putty-root. — Occa- 

 sional in rich woods and thickets. 



Piperaceae. Pepper Family. 



Saururus cemuus L. Lizard's Tail. — Occasional in swamps and shallow 

 water. 



