GREENE — PTELEA IN THE WEST AND SOUTHWEST. 59 



5. Ptelea antonina, ?^p. nov. 



Twiga uf the season not ]>erceptil>Iy rugate or tul^erculate, being hoary with a ("iense 

 hirtfllous-loiiKMitose induinent, tiie oMer dark <hiII-bro\vn, smootJi and glabrate : 

 foliage at all stages of a <lefiiiitely blue-green shade, also villous-pnbesront beneath^ 

 deeper in color and tlunly pabe:^rent a1)()ve/the texture thiniii.^h even in maturity; 

 mid<llo leaflet obovate to obovate-elli[»tic, 4 to 6 cm, long, aeute at baye, obtusely 

 cuspidate pointed at apex, faintly crenate or yubentii e, tlie j>air f^maller by one-fourth 

 toone-thinl, obliquely and even broadly ovate lather than rtvate, pointed like the 

 odd one, all fceatjile; samaras of the largest, even extrenudy large in proportion to 

 the foliage, 2.5 to 3 cm. long, 2.1 cm. wide above tlie middle, broadly somewhat 

 obovatCj obtuse at the broad apex, mufrnnidate by the j^hort style, at ba?=e narrow, 

 retuj^e; l)ody oval, of somewhat less than the width of the wing, circumvallate, 

 closely and rather sharply transverse-rugose^ only minutely and soniewhat obscurely 

 tlKjugli not sparingly glandular-punctate; style and stipe long and subequal, but 

 neither prominent. 



Near San Antonio, Texas, the type specimens in the National Herbarium, collected 

 June 11, lSt)]j l)y Mr. J^. H. Dewey. In ISO-t A. A. Heller collected the same also 

 at San Antonio, but in flower and half-grown leaf only. He distributed it under the 

 same number^ 1582, as that which accompanies his P. rhouihifoHn, though the two 

 ppecies are not so very closely related, the foliage of I\ rkomhifoUa being not only 

 almost twice as large, but of almost subcoriaceous texture. 



6. Ptelea rhombifolia Heller, Bull. Torr. Clul) 26: 313. 1899, in small part only. 



Twigs of the season light brown, minutely and densely pubescent, but the indu- 

 ment parted into interrui>ted lines as following the summits of the pronounced 

 rugosities; leaves large, rather firm in maturity, of a deep green, above sparingly 

 clotiied with short depressed hairs, beneath villous-tomentulose; odd leaflet broadly 

 obovate, rarely with some hint of the rhomboid in outline, (^ to 8,5 era, long, 4 to 

 4.5 wide al)ove the middle, acute at base, briefly and bluntly cuspidate at apex, lat- 

 erals smaller by one-fourth or one-third, obliquely ovate, cus])idate: samaras very 

 lar^e, suborbicular, 2.5 to 3.2 cm, long, the breadth but little less, slightly subcor- 

 date at the broad base, the rounded or subtruncate a])ex rarely mucronately or 

 cuspidately acutish; body large, but of less than ihe wuUii of tlie broad wing, round- 

 obovate, indistinctly circumvallate, closely l>ut not prominently transverse-rugose, 

 faintly dotted; stipe longer than the style and both long. 



Southwestern Texas, where it seems to l>e common, especially about San Antonio. 

 It was gathered there in immature specimens by Heller in Ai>rd, 1S94; ttie fruit 

 wrongly characterized l:)y him because not half grown in his sp(H'imeng, Better 

 material is in the National Hert)ariuin from Dr. E. Palmer, 1S7H; Munson and 

 Hopkins, near Kerrville, July, 1889; William R, Maxon, at Victoria, April 28, 

 1905. .Mr. Heller's distribution number, 1582, covers this, and also tlie very dif- 

 ferent y^ (tnionina^ above described as new. 



7. Ptelea formosa, sp. nov. 



Shrub perhaps large; twigs of the season largt^, copiously leafy with large foliage, 

 the hark reddiah-brown, beeming glalirous but under a lens minutely hirtellous- 

 puherulentj only minutely and obscurely rugulo«e and glandular, the older glabrous, 

 8inoot!i, cmereous'gray : leaves large, thm, pale on both faces, above glabrous except 

 on the veins, beneath very glaucou.s am! with scattered villous hairs not only on the 

 veins but elsewhere; leaflets su!)e(]nal, the terminal one as often smaller as larger 

 tlian the other two, obovate to oval, (i to 8 cm. long, only abruptly narrowed at base, 

 all abruptly and cuspidately acute, the margins more or less distinctly subsi'rrate- 

 toothed: samaras not farge lor t!ie foliage, the largest 2 cm. long, little more than 



329Gf>— 00 -3 



