234 FLORA OF PHILADELPHIA. 



Pedicel shorter than the body of the capsule, the wings thin and 

 glabrous. 2. K. linearis. 



Pedicels and capsules glabrous or glabrate. 3. K. pumila. 



■Capsules oblong or nearly so. 4. K. frutioosa". 



1. Kneiffia longipedicellata Small. M. p. 659. In fields and thickets. 



Bucks— Tullytown (P.). Delaware— Tinicum (B. Sm.). 

 New Jersey— Frequent. 



2. Kneiffia linearis (Michx.) Spach. M. p, 660. Dry soil. Summer. 



Montgomery— (P.). Delaware— Darby, H. C. Barker (B. C), Lans- 

 downe (Pe.). Lancaster— (P.). 



Burlington— Quaker Bridge, Pemberton (C); Gloucester— Mickleton 

 (C), Washington Park (Ja.), Swedesbofo (Li.). Salem— Canton (C). 

 Cape May— Whale Beach (Ab.). Atlantic— Absecon (C.).i Monmouth — 

 Deal (C). 



New Castle— Townsend, Canby. 



~t~ 3. Kneiffia pumila (L.) Spach. M. p. 660. Dry soil. Summer. 



j 4. Kneiffia fruticosa (L.) Baimann. Common Sundrops. M. p. 660. 

 Dry soil. Summer. • 



9. GAUBA L. 

 L- 1. Gaura biennis L. M. p. 663. Dry banks. Summer. 



10. CIBCAEA L. Enchanter's Nightshade. 



Fruit 2-celled; leaves mainly of an ovate type.' 1. C. Lutetiana. 



Fruit 1-celled; leaves mainly of a cordate type. 2. C. alpina. 



1. Circaea Lutetiana L. M.' p. 664. Woods. Summer. 



2. Circaea alpina L. M. p. 664. Cold, moist woods. Summer. 



Lehigh — Lehigh Mountain (Kr.). Northampton — Pen Argyl (.He.) 



(ja.). ■ " ;, 



Family 4 HALORAGIDACEAE Kl. & G&rcke. Water-milfoil Family. 



Fruit 3-angled or 4-angled. ■ . 1» Proserpinaea.^ 



Fruit of 4 carpels. 2. Myriophyllum. 



1. PEOSEBPINACA L. Mermaid-weed. 



Emersed leaves linear-lanceolate to oblong, serrate; fruit sharp-angled. 



1. P. palustris. 

 Leaves all peetinate-pinnatifid ; fruit obtusely angled. 2. P. pectihata. 



1. Proserpinaca palustris L. ' M. p. 665. Swamps. Summer. 



Bucks— Bristol, M art. (B.' C:), Argus, Sellersville (Fr.). Northampton 

 — (P.) . Dauphin— (P.) . 

 New Jersey— Common. 

 New Castle— Col. Andrews', Pencader Hd. and elsewhere. Not rare. 



2. Proserpinaca pectinata Lam- , M. : p. 665. 'Sandy swamps. Summer. 



Lancaster— (P.) . 



New Jersey — Common near the coast. 



New Castle — Lower Hundreds, Commons'. 



