GREENE PTELEA IN THE WEST AND SOUTHWEST. 73 



50. Ptelea salig-na, sp. nov. 



Tu iga and branches all with whitish shining bark faintly rugose, nol obviouslj 

 glandular, glabrous: foliage thinnish, clear lighl green above, paler beneath, pustu- 

 late-punctate but glands colorless and obscure, both faces glabrous; odd leaflet nar- 

 rowly Ian. •folate or even Lance-linear, slightlj acuminate bul the very apex obtuse, 

 5 to 9 cm. long including a distinct and not verj short petiolule, the pair one-third 

 smaller, short-petiolulate, in general narrower in proportion but equal-sided, all 

 lightly crenate: samaras large, subreniform-orbicular, being always broader than 

 Long, the breadth 1.5 to 2 cm., base subcordate, apex nol so, but now ami then mu- 

 cronate-acutish ; body oval, smallish, of little more than halt' the width of the wing, 

 very lightly transverse-rugose and faintly dotted, not circum vallate, the faint ridges 

 becoming more prominenl as graduating into the somewhat retr< >rse venation of the 

 wing; style and stipe equal, <>r the former longer. 



Nagle's Ranch, Arizona, altitude 2,240 meters, M. E. .lone-. September 15, L894, 

 no. 6048, as in the National I ferbarium (type) and the t Herbarium of the California 

 Academy. Most peculiar species, having long narrow leaflets imitating the leaves 

 of Salixnigra in color, form, and texture. The locality is in northern Arizona, north 

 of the Grand < lanyon. 



51. Ptelea brevistylis, sp. nov. 



Twi.us and branches for two seasons dark reddish brown, sparsely puberulent, not 

 rugulose, but roughened with a rather close tuberculation: leaflets of a dull light 

 green, ovate- to oblong- lanceolate, "i cm. long, in age glabrate, doubtless pubescenl 

 when young, the margins lightly crenulate: samaras large and with broad thinnish 

 wing, the outline usually round-obovate, but in some nearly orbicular, the length of 

 the largest 2 cm., the breadth toward the summit L.Scm.; body of the fruit large, 

 round-obovate, very obscurely and irregularly rugose, somewhat pubescent, stronglj 

 gland-dotted, very eccentric, its summit nearly or quite st) leless and the wing thin. 

 deeply emarginate, or obcordate, the almost sessile stigma in the notch, the base of 

 the wing merely subcordate and the stipe long. 



of this shrub, singular among Californian species of Ptelea by its large fruit with 

 broad wing, which is subcordate at base and nearly obcordate at summit, only a 

 single specimen has been seen, and that imperfect as to foliage, but with a tine clus- 

 ter of fruits. It was collected by G. K. Vasey in ' s ~ : >. in what part of the State it 

 i- impossible t<> ascertain. 



It is unmistakably Californian by the peculiar hue and venation of foliage that 

 are common to all known Californian species, and which occur in no others; ami its 

 fruit is pubescent, as in none but Californian members of the genus. The type 

 specimen is in the National Herbarium, sheet no. 321. 



52. Ptelea ovalifolia, sp. nov. 



Mature twigs of the season chestnut-color, lightly rugulose, quite as prominently 

 tuberculate. minutely and not densely puberulent, those a year old glabrate, tlie 

 tuberculation more prominent, tin- rugosity less so: leaves ample, firm, but not sub- 

 coriaceous, of a lighl vivid green on both faces and almost polished, a trifle paler 

 and duller beneath, with mere traces of pubescence.on veins and veinlets; terminal 

 leaflet oval, 6.5 to s cm. long, •">."> to -4 cm. broad, the pair smaller by one-fourth to 

 one-third, obliquely oval, all sessile, nearly obtuse, some with a short and abrupt 

 blunt point, all more or less crenate: samaras -mall for the foliage, subreniform- 

 orbicular, the width being about 1.7 cm., the length only 1.4 cm., the base retuse, the 

 apex only very obtuse; body broadly round-oval, large, its width notably greater 

 than that of the wing, obscurely puberulent in full maturity, the rugosities tending 

 transversely but almost wholl} broken im., pitted reticulations, each with a gland 

 at bottom; style and stipe not obscure, both short. 



