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13. Scutellaria L.  Sxuvwcar, 
Calyx 2-labiate, closed in fruit, at last split- 
ting and the upper lip deciduous. Tube of 
corolla exserted; upper lip crest-shaped, with 
2 lateral lobes; lower lip reduced to a single 
lobe. Stamens didynamous, ascending, par- 
allel. Anthers of the lower pair dimidiate. 
1. 8. TupERosa Benth. Root stock filiform, 
bearing tubers; none of the tloral leaves shorter 
than the flowers; flowers blue.—2. San Fran- 
cisco. Contra Costa. Spring. 
2. §. Cauirornica Gray. Root stock fili- 
form, but without tubers; uppermost floral 
leaves shorter than the flowers; flowers 
pale.—2¢. Marin County. Spring. 
14. Prunella L. SELF-HEAL, 
Calyx 2-labiate, closed in fruit and flattened. 
Corolla with a scaly or hairy ring near its base; 
upper lip concave; lower lip 3-lobed. Stamens 
didynamous; ascending. Anthers approximate 
in pairs.— 2. 
1. P. votegarts L. Flowers blue, —San 
Francisco. Summer. 
15. Marrubium L. Horenovunp. 
Calyx tubular, 5-10 dentate. In fruit the 
teeth spreading. Tube of the corolla included. 
Limb 2-labiate. Stamens didynamous, includ- 
ed. Cells of anthers divaricate.—2,. 
