The Flora of the Cayuga Lake Basin 159 



IE. decipiens (Hook.) Ames. (Goodycra Menziesii of Cayuga Fl., possibly.) 



Woodlands about swamps ; rare. 



" Michigan Hollow, borders of the deep swamp ; not in flower but leaves and buds 

 evidently of this species. Dr. Gray obtained it in 'Western N. Y.' — it is believed from 

 Seneca Co., — in 1831" (D.). This plant has not been seen since the time of the 

 foregoing record, and the determination is doubtful. It was probably a sterile plant 

 of the preceding species. 



E. Que. to B. C, southw. to N. S., N. P.., n. Me., Lake Huron, and Ariz., also in 

 Calif.; very rare in N. Y. State; rare or absent on the Atlantic Coastal Plain. 1 



3. E. pubescens (Willd.) A. A. Eaton. (Goodyera pubescens of Cayuga Fl.) 

 Rattlesnake Plantain. 



Rich, slightly acid humus in dry, mostly coniferous woods ; frequent. Aug. 



Hillside, North Spencer; Enfield Glen; Cascadilla woods (D.) ; Fall Creek (D.) , 

 Ringwood ; Malloryville; and elsewhere. 



Me. to Minn., southw. to Fla. and Term., including the Coastal Plain. 



12. Listera R. Br. 

 1. L. australis Lindl. Twayblade. 

 Peat bogs, in sphagnum ; rare. Tune. 



Bog n. e. of Duck Lake, 1916 (L. Griscom, F. P. Melcalf, & A. H. Wright\) ; 

 Featherbed Bog (same collectors!). 



A plant of the Coastal Plain from N. J. to Fla. and La. ; also in cent, and w. N. Y. 

 and at Ottawa, Ont. 



13. Corallorrhiza (Haller) Chat. 

 a. Lip with small lateral lobes, ovate, oval, or broadly oblong. 



b. Lip unspotted; lateral lobes minute, tooth-like; spur nearly obsolete; small plants 



of swamps, flowering in May. 1. C. trifida 



b. Lip spotted with purple; lateral lobes broad and rounded; spur manifest; larger 

 plants of upland woods, flowering in summer. 2. C. metadata 



a. Lip without lateral lobes, obovate or oval ; spur nearly obsolete ; small plants of 

 damp woodlands, flowering in late summer. 3. C. odontorhiza 



1. C. trifida Chat. (C. innata of Cayuga Fl.) Small Coralroot. 



Boggy or mucky woods in more or less calcareous regions, also more rarely in 

 humus or in dry woods over less calcareous soils ; scarce. May 10-June 10. 



Michigan Hollow Swamp; swamp e. of Slaterville; Ellis Hollow Swamp (D.!); 

 Dryden-Lansing Swamp (D.) ; borders of Mud Creek Swamp (D.) ; probably else- 

 where in similar places. 



Newf. to Alaska, southw. to n. N. J., Pa., Ohio, Mich., Minn., and Wash., and in 

 the mts. to Ga. ; absent on the Atlantic Coastal Plain. 



2. C. maculata Raf. (C. multiflora of Cayuga Fl.) Large Coralroot. 



Humus of dry sandy or gravelly woodlands, sometimes in low moist woods, in 

 neutral or slightly acid soils ; frequent, and generally distributed. June 20-Aug. 



This plant may grow in woods of either chestnut, maple, or beech, occurring in 

 nearly all the dry woods w., s., and e. of Ithaca, and in the McLean district, but not 

 in the heavier soils. 



N. S. to B. C, southw. to Fla., Mo., N. Mex., and Calif. ; frequent on the Atlantic 

 Coastal Plain. 



3. C. odontorhiza (Willd.) Nutt. 



Damp sandv or gravellv chestnut woods, in slightly acid soils; rare. Aug.-Sept. 



Richford, in chestnut woods, 1917 (A. Gershoy) ; Turkey Hill, 1921 (A. H. 

 Wright) ; e. side of Phillips Pond, 1922 (W. C. Muenscher & K. M. W.). 



S. Me. to Ont. and Mich., southw. to Fla. and Mo., including the Coastal Plain ; 

 rare northw. 



