SCEOPHULAEINEa. 273 



* * Corolla bilabiate, but all the lobes, even the lowest, spreading- 



8. C. tenella, Benth. Stems almost filiform, 5 — 10 in. long: lowest 

 leaves round-ovate, toothed; middle eauline 3-lobed or -divided; upper- 

 most and floral linear, entire : filiform pedicels solitary or in pairs at the 

 nodes, longer than the leaves: corolla minute, little exceeding the calyx; 

 its 5 lobes of nearly equal length, but the anterior one transversely oval, 

 the other 4 oblong: capsule exceeding the calyx: cells 1-seeded. — Santa 

 Clara and Sonoma counties, and far northward. April. 



5. SCROPHULAKIA, Tourn. Homely weed-like perennials, with 

 opposite leaves, and loose cymes of small dull-reddish flowers in a 

 narrow terminal panicle. Calyx deeply 5-cleft; lobes broad, rounded. 

 Corolla short; tube ventricose; limb of 5 unequal lobes, 4 erect, the fifth 

 and lowest recurved. Stamens 4, in 2 pairs; anthers transverse and by 

 confluence 1-celled: a scale like rudimentary fifth stamen borne on the 

 upper side of the throat of the corolla. Capsule ovate, septicidal, many- 

 seeded. Seeds tuberculate-rugose. 



1. S. Californica, Cham. Almost glabrous, dark green, or the stem 

 purplish, 2 — 5 ft. high: leaves oblong-ovate with cordate base, coarsely 

 and doubly toothed: inflorescence somewhat glandular-pubescent and 

 viscid: branchlets of the panicle rather few-flowered and distinctly 

 cymose. Var. floribunda. More slender; the herbage light green; 

 leaves more sharply deeply and incisely toothed: branches of the panicle 

 greatly elongated and remarkably flexuous as well as very many-flowered. 

 — Type common at the seab'oard; the variety belonging to hills of the 

 interior. 



6. PENTSTEMOJJ, Mitchell. Herbaceous or shrubby, with opposite 

 or verticillate leaves, and racempse-panicled mostly showy flowers; the 

 peduncles from the axils of floral leaves or bracts. Calyx 5-parted. 

 Corolla with ventricose usually elongated tube; limb more or less 

 bilabiate; upper lip 2-lobed; lower 3-lobed. Stamens 4, declined at 

 base, ascending above; anthers with cells mostly united or confluent at 

 summit; the fifth stamen a conspicuous often more or less dilated and 

 hairy filament. Capsule septicidal, oo -seeded. Seeds angled. 



* Anther cells divergent, or even divaricate. 



1. P. centranthifolius, Benth. Herbaceous, glaucous, the erect and 

 strict stems, 2 — 4 ft. high: eauline leaves ovate-lanceolate, sessile by a 

 broadish clasping base; panicle narrow, 1 ft. long or more: corolla nar- 

 row-tubular, 1 in. long, obscurely bilabiate, bright vermilion-red; the 

 short-oblong lobes alike save that the two posterior are united higher: 

 anthers opening widely; sterile filament slender, naked. — Near Vacaville 

 and Niles, and southward. May, June. 



