112 FLORA OF PHILADELPHIA. 



Burlington— Wrightstown (C), Atsion (Fr.). Camden— Longacoming, 

 Camden .(C). Gloucester— Franklinville (C), Swedesboro (Li.). Cape 

 May— Cape May (Ja.). Atlantic— Hammonton (C), Egg Harbor (He.) 

 (Mac.) (Wn.). 



New Castle— Mount Cuba, Serpentine, Commons; opposite Kentmere, 

 Ganby. 

 5. Gyrostachys gracilis (Bigel) Kuntze. M. p. 300. Dry fields and open 

 woods. Late summer and fall. 



12. LISTEEA E. Br. 

 1. Listera australis Lindl. M. p. 302. Bogs. Spring. 

 Chester— Near Valley Hills (P.). 

 Camden— Camden (C). Middlesex— New Brunswick (C). 



13. PEEAMIXJM Salisb. 

 1. Peramium pubbscens (Willd.) MacM. Rattlesnake. Plantain. M. p. 302. 

 Dry woods. Late summer. 



14, ACHRCANTHES Eaf . , 

 1. Achroanthes unifolia (Miehx.) Eaf. Adder's Mouth. M. p. 303. 

 Woods. Summer. 

 Philadelphia — Germantown (Me.). Delaware — Near Lima, Middle- 

 town, Dr. William Trimble , (Fu.) , Darby, Pusey's ^Vpods, Dr. Geo. Smith 

 (B. Sm.), Concord (W. Tr.). Chester— Uwchlan Twp. (Pr.), north of 

 Coatesville (St.). Lancaster— Pleasant Grove (Ca.). 



Gloucester— Swedesboro (Li.). .Atlantic— Hammonton (Cr.). Mon- 

 mouth— Red Sank, Keyport (C). Middlesex— South Amboy, C. A. Boice 

 (B.C.). 

 New Castle — Speakman's. Eare. 



15. LEPTOECHIS Thouars. Twayblade. 



Eaceme many-flowered ; lip as long as the petals. 1. L. liliifolia. 



Raceme few-flowered; lip shorter than the petals. 2. L. Loeselii. 



1. Leptorchis liliifolia (L.) Kuntze. M. p. 303. Moist woods. Summer. 



Philadelphia— Wissahickon (Je.) (Re.) (Wn.), Shawmont (Sa.), Ger- 

 mantown, common (St.). Bucks— Eock Hill (Fr.), Argus (Ja.), Center 

 Bridge (Sts.)-(Ws.), Pineyville (Ws.). Montgomery— Shannonville (Cr.), 

 Gulf Mills (Mar.), Sumneytown (VP.). Delaware— Middletown (Fu.), 

 Wawa (Ja.), Media (Ke.) (Sa.) (Te.), Swarthmore (Pr.), Ehoads' 

 Mills, Aston (B. Sm.), Chad's Ford (Te.) (Wn.), Concord (W. Tr.), 

 near Newtown (VP.). Chester— Malvern (Le.). Lancaster— York Fur- 

 nace (Cr.). Berks— Wernersville (Te.). Lehigh-^Black River, Salsburg 

 (Kr.). Dauphin— Rockville (Wn.). Northampton— (P.). 



Burlington — Bordentown (C), Oliphant's Mill (Wa.). Camden — 

 Camden (C). Gloucester — Near Mickleton (He.), Swedesboro (Li.). 

 Salem— Auburn (C), Riddleton (Wa.). Ocean— Manchester (C). 



New Castle— Mount Cuba (Ha.). General, not common. 



2. Leptorchis Loeselii (L.) MacM. M. p. 303. Wet thickets and springy 



banks. Early summer. 



