* f 



n ^ 



GEEENE PTELEA l^ THE WEST AND SOUTHWEST. 73 



50. Ptelea saligna, si), nov. 



Twigs and branches all with whitit^h Hhining bark faintly rugose, not obviouslj' 

 glandular, glabrous: foliayt? thinnish, clear light green above, paler beneath, pustu- 

 lato-puiu'tate ])ut glaud?^ colorless and obscure, botli faces glabrous; odd leaflet nar- 

 rowly lanceolate or even lanco-linear, Fliglifly acuminate but the very apex obtuse, 

 5 U) 9 ciu, long including a distinct and not very short petiolule, the pair one-third 

 smaller, short-petiolulate, in general narrower in proi)ortion but equal-sided, all 

 lightly crenate: saniara-s large, subreuifonu-urbicular, being always broader than 

 long, the breadth 1.5 to 2 cm., base subconlate, apex not so, but now and then mu- 

 cronate-acutish; body oval, smallish, oi little more than hall* the wi<lth of the wing, 

 very lightly transverse-rugose and faintly dratted, not circuinvallate, the faint ridges 

 becoming more prominent as graduating into the somewhat retrorse venation of the 

 wiiig; style and stipe equal, or the former lunger. 



Nagle's Ranch, Arizona, altitude 2,240 meters, 3L E. Jones, September 15, 1894, 

 no. 6048, as in the National Herbarium (type) and the Jlerbarium of the California 

 Academy. Most poculiar species, having long narrow leafli'ts imitating the leaves 

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

 of the Grand Canyon. 



51. Ptelea brevistylis, sp. nov. 



Twigs and branches for two seasons dark reddish brown, sparsely puberulent, nut 

 rugulose, l.nit roughened with a rather close tuberculation: leaflets of a dull light 

 green, ovate- to oblong- lanceolate, 5 cm. long, in age glabrate, doubtless pubescent 

 when young, the margins iiglitly crenulatc: samaras large and with broad thinnish 

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

 the largest 2 em., the breadth toward the summit 1.8 cm.; body of the fruit large, 

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

 gland-dotted, very eccentric, its summit nt^irly or quite styleless and the wing thin, 

 deeply emarginate, or o1>cordate, the almost sessile stigma in the notch, the base of 

 the wing merely subcordate and the stipe long. 



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

 broad wing, which is subconlate at base and nearly obcor<late at sunniiit, only a 

 single sijecimon has been seen, and that inqxM'ftn't as to foliag<^, but with a fine clus- 

 ter of fruits. It wa3 ccjllected Ijy G. K. Vasuy in 1875, in what ]>art of the State it 

 is impossible to 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; and its 

 fruit is pubescent, as in none but Californian mcnd)ers of the genus. The type 

 specimen is in the National IbM-barimn, shet't no. IV21. 



52. Ptelea ovalifolia, sj). nov. 



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

 tuberculate, minutely and not densely pubemlent, tliose a year old glabrate, the 

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

 coriaceous, of a light vivid green on l)oth fares ami ahnost polished, a trifle paler 

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

 leafli^t <n'al, 6,5 to 8 cm. long, 3.6 to 4 cm. bruad, the luiir smaller by one-fourth to 

 onc-thh-d, obli(piely oval, all sessile, nearly obtuse, some with a short and abrupt 

 blunt point, all more or less (Tcnate: samaras small for the foliage, subreniforni- 

 orbicular, the width bt^-ing about 1.7 cm., the length only 1.4 cm., the base retuse, the 

 apex only very obtuse; l)ody broadly ronnd-ovah large, its widtli notably greater 

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

 transversely but almost wholly broken into pitted reticulations, each with a gland 

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



