802 



Labiatae 



Scutellaria 



50 



Map 1732 



Scutellaria galericulata L, 



50 



Map 1733 



Scutellaria nervosa Pursh. 



has also been collected in Lawrence County by Kriebel and in Porter County 

 by Nieuwland. 



Maine to n. Ind., southw. to Fla. and Tex. 



7234. SCUTELLARIA [Rivin.] L. Skullcap 



[Penland. Notes on North American Scutellarias. Contr. Gray Herb. 

 Harvard Univ. 71 : 61-79. 1924. Leonard. The North American species 

 of Scutellaria. Contr. U. S. Nation. Herb. 22: 703-748. 1927.] 



Median stem leaves sessile or nearly so or on petioles up to 3 mm long, sometimes the 

 lowest leaves on longer petioles. 

 Stems with a retrorse pubescence; plants of a marsh habitat; corollas 17-22 mm long. 



1. S. galericulata. 



' Stems glabrous or, if pubescent, not as above; plants not of a marsh habitat; corollas 

 less than 15 mm long. 



Median and lower leaves coarsely crenate 2. S. nervosa. 



Median and lower leaves entire or mostly so. 

 Pubescence of stems and pedicels spreading. 



Lower surface of leaves more or less dotted with sessile glands 



3. S. parvula. 



Lower surface of leaves not dotted with sessile glands 4. S. australis. 



Pubescence of stem and pedicels upwardly appressed 



5. S. Leonardi. 



Median stem leaves on petioles more than 5 mm long. 



Internodes of stems and lower surface of leaves glabrous or with only a straggling 

 pubescence on the angles of the stem and on the veins of the blades. 

 Inflorescence a terminal loose raceme. (See excluded species no. 525, p. 1084). . . . 



S. serrata. 



Inflorescence not as above. 



Median stem leaves rounded or subcordate at the base, acute to acuminate at 

 the apex; inflorescence in loose axillary racemes; flowers 5-8 mm long; 



plants of wet places 6. S. lateriflora. 



Median stem leaves cordate at the base, obtuse to very obtuse at the apex; 

 inflorescence of single flowers in the axils of the leaves; flowers mostly 

 15-18 mm long; plants not of wet places 7. S. saxatilis. 



