292 LABIATE. 



or vertically cleft and the segments divergent, exposing fully the sta- 

 mens from their insertion on the bottom of the throat. Genitals all 

 long-exserted. Stamens 2, consisting of a distinct filament articulated 

 with the single arm of the connective present, this on the same plane 

 with the proper filament, bearing the one anther- cell at its summit. 



1. R. hiimilis (Benth.), Greene. Prostrate very leafy woody stems 

 forming broad mats: leaves oblanceolate to spatulate-oblong, obtuse, 

 petiolate, tomentose-canescent and finely rugulose: scape-like peduncles 

 erect, a foot high more or less: verticillasters few-flowered: arched 

 calyx with not very unequal lips, the upper pungently 3-toothed, 

 the lower deeply 2-cleft: corolla, stamens and pistil deep violet; short 

 tube of the corolla closed by hairs; sundered upper part of throat 

 cleft into 2 lanceolate upturned and divergent segments; deeply 

 concave and wide-open lower part showing stamens from their 

 insertion, truncate at the upper end, the ampliate 3-lobed and crisped 

 lower lip joined to this by a broad and short ligulate claw. Common on 

 the mountain sides near Mt. St. Helena, Hood's Peak, etc. April June. 



13. ffEPETA, Linn. Calyx 15-ribbed, oblique at the constricted 

 throat, unequally 5-toothed, 3 upper teeth longer than the 2 lower. 

 Corolla with rather long and slender tube; upper lip erect, slightly con- 

 cave, emarginate, or 2-lobed; lower spreading, 3-lobed. Stamens 4; 

 anther-cells at length divaricate and confluent. Both species Old World 

 garden plants, not native here. 



1. N. CATABIA, L. Perennial, stoutish, erect, 13 ft. high, with 

 ascending branches; hoary with a dense short pubescence: leaves triangu- 

 lar-ovate, subcordate, coarsely serrate, about 2 in. long: verticillasters 

 forming a dense terminal thyrsoid cluster: calyx-teeth lanceolate subu- 

 late: corolla % in. long, white, dotted with lilac. Not rare in Marin, 

 Sonoma and Solano counties. 



2. N. HEDEBACEA (L.). Stems slender, procumbent, rooting; flowering 

 branches short, ascending: leaves round-reniform, crenate, glabrous or 

 hispid-puberulent : flowers few: calyx ^ in. long; teeth triangular-subu- 

 late: corolla % in. long or more, blue. Moist banks by a roadside on Mt. 

 St. Helena. 



14. SCUTELLARIA, Cortusi. Perennial herbs not aromatic, with 

 solitary flowers in the axils of leaves or bracts. Calyx without teeth, 

 horizontally cleft in to 2 lobes, the upper with a crest-like projection; the 

 orifice closed in fruit, and the casque-like upper half of the calyx at 

 length falling away from the mature fruit. Corolla with elongated and 

 ventricose throat : upper lip erect, arched or galeate, the lateral lobes of 

 the lower lip attached to it, the middle and lowest lobe of the corolla 

 appearing to constitute the lower lip. 



