LABIATAE 265 



4. SCUTELLARIA L. 



Fruit very slightly elevated on the small gynobase : nutlets wingless. 



Corolla less than ii mm. long. i. 5. lateriflora. 



Corolla over ii mm. long. 

 Flowers in terminal racemes or panicles. 



Leaf-blades above the middle of the stem cordate at the base. 

 Foliage, especially the internodes of the stem and the inflorescence 



copiously pubescent. 2. 6". cordifolia. 



Foliage glabrous or with scattered hairs about the nodes and in the 

 inflorescence. 3. S. saxatilis. 



Leaf-blades above the middle of the stem abruptly or gradually narrowed 

 at the base. 

 Leaves with toothed blades. 



Corolla over 2 cm. long. 4. S. serrata. 



Corolla less than 2 cm. long. 

 Corolla copiously pubescent. 5. ^. incana. 



Corolla glabrous or nearly so. 6. 5". pilosa. 



Leaves, at least those above the middle of the stem, wdth entire blade?. 



7. 5. integrifolia. 

 Flowers solitary in the axils of leaf-like bracts. 

 Corolla less than 1.5 cm. long. 8. 5". parvula. 



Corolla over 1.5 cm. long. (). S. galericulala. 



Fruit elevated on a slender gynobase : nutlets winged. 10. .S. nervosa. 



1. Scutellaria lateriflora L. M.\d-dog Skullcap. (Man. p. 783; 

 I. F. /. jo/j.) In wet places, Newf. to B. C, Fla., N. Mex. and Wash. 

 Pennsylvania : Monroe ; Northampton ; Bucks ; Philadelphia ; 

 Delaware ; Chester ; Lancaster ; Columbia ; Franklin ; Alle- 

 gheny. 



2. Scutellaria cordiflora ^Nluhl. Heart-leaved Skullcap. (Man. 

 p. 784; I. F. y. JO/S.) In woods and thickets, Pa. to Fla., west to Wis., 

 Kans. and Tex. — Pennsylvania : Lancaster ; York ; Dauphin ; Ly- 

 coming ; Huntingdon ; Allegheny ; Erie. 



3. Scutellaria saxatilis Ridd. Rock Skullcap. (Man. p. 785 ; I. F. 

 /. 30S6.) On moist banks and in thickets, Del. to Va., Ohio and Tenn. — 



Pennsylvania: Westmoreland; Allegheny. 



4. Scutellaria serrata Andr. Showy Skullcap. (Man. p. 783 ; I. 

 F. f. 3076.) In woods, N. Y. and Pa. to N. C, 111. and Ky. — Pennsyl- 

 vania : Delaware, Upper Darby. 



5. Scutellaria incana Muhl. Downy Skullcap. (Man. p. 784 ; I. 

 F. /. 30/Y. ) In moist woods and thickets, Ont. to 111., Kans., N. C. and 

 Ala. — Pennsylvania : Lancaster ; Allegheny. 



6. Scutellaria pilosa Michx. Hairy Skullcap. (Man. p. 784 ; I. F. 

 /. 3079.) In dry sandy woods and thickets, N. Y. and Pa. to Mich., Mo., 



Fla. and Tex. — Pennsylvania : Northampton ; Bucks ; Delaware ; 

 Lancaster ; Franklin ; Allegheny. 



7. Scutellaria integrifolia L. Larger or Hyssop Skullcap. (Man. 

 p. 784; I. F./. 30S0.) In fields, woods and thickets. Conn, and R. I. to 

 W. Va., Fla., Li. and Tex. — Pennsylvania : Bucks; Delaware ; Ches- 

 ter ; Montgomery ; Dauphin ; Berks ; Franklin ; Huntingdon. 



