, 





1909] NELSON— PLANTAE GOODDINGIANAE 429 



mm 



very variable, 5-1 o cm long or more, somewhat lyrate; the terminal 

 lobe large, elliptic-ovate, irregularly crenate-dentate or entire; the 

 lateral lobes irregular, small, few to many or even wanting: flowers 

 large, crowded but ultimately evolving an elongated large-fruited 



1 



raceme: calyx-tube turbinate, 4-5 mm long; its lanceolate lobes twice 

 as long, with a short hornlike appendage near the tip : petals yellow, 

 obovate-orbicular, about i5 mm long: stamens about equal; filament 

 and anther each about 5 mm long: style shorter than the petals: cap- 

 sules 5-6 cm long and 2-3 mm broad, on pedicels 5-1 5 mm long: seeds 

 numerous, somewhat ovoid but irregular and angled through pressure, 

 2-3 mm long. 



• Tuly's Ranch, thirteen miles from Las Vegas, Nevada, in stony washes, May 

 1, 1905, Go adding 2348. 



Lavauxia lobata, n. sp. — Biennial or possibly more enduring, the 

 rather thick root with an enlarged more or less branched crown: 

 stemless or more usually caulescent, softly and conspicuously hirsute 

 throughout: leaves crowded on the crowns and short stems, i-2 dm 

 long, narrowly oblanceolate in outline, irregularly and deeply pin- 

 nately lobed; the lobes mostly oblong, obtuse or subacute, 5-18 - 

 long: calyx- tube 7-Q cm long; its lobes ovate-lanceolate and about 

 25 mm long: corolla yellow, changing to red with age; the petals 

 as long as the calyx-lobes and a third broader than long: style as long 

 as the petals, with long-linear stigmas: capsule linear-lanceolate, 

 sharply angled but not winged, tapering very gradually from the base, 

 4-6 cm long, 4-6 mm broad: seeds 2~3 mm long, with conspicuous 



tubercle. 



Meadow Valley Wash, Nevada, in sandy washes, April 7, 1905, Coodding 



37 and 47 (type). 



This fine species might readily be mistaken for a yellow -flowered Pachylophus, 



did it not have the angled capsule and tubercled seeds of Lavauxia. 



Pachylophus cylindrocarpus, n. sp.— Biennial, stemless or more 



often developing a stoutish stem i-2 dm high: leaves narrowly oblong- 

 lanceolate, nearly entire to irregularly and lacerately dentate, almost 

 glabrous on the faces but with a white fringe of soft hair on the mar- 

 gins- blade 5-i5 cm long, on petioles as long or longer: calyx (includ- 

 ing ovary) softly white-hirsute; its lobes linear-lanceolate, nearly 

 3 < m long: petals broadly cuneate-obcordate, with deep sinus, equaling 



