76 CONTKIBUTIONS FROM THE KATI0:N'AL HERBAKIUM. 



SL'gregateJ without the'leust difficulty. They iuo lully thr(!0 tinieti — now aiul then 

 four times— the «i/.e of tliose of P. aplera^ huL luive a wing. The body has its own 

 outlinej l>ein<>; exactly oval in P. nucifera, whereas in I\ apiera it is, as Dr. Parry 



said, *' broadly ovate/' 

 The locality of P. mtcifera is well down toward the middle of the Lower Californian 



Peninsula, and at t^oine dit^tance inland, in the vicinity of a desert waiter liole, while 

 P. aplera is maritime, inliabiting hills that ^lope down to the sea, well toward the 

 northern extremity of the peninsula. 



Specimens of the fruit of P. micifera appear to have been communicated by Mr. 

 Brandegee to Dr. Parry; for in the Parry Herbarium I find attached to the type 

 sheet two pockets, one containing his types of tlie fruit of J\ aptcra and so labeled; 

 the other incloising five perfect samaras of J\ nudfera. This pocket is without a 

 mark of any kind hi Dr. Parry's hand; as if he may have entertained some doubt 

 about its contents being referable to P, apiera, 



58, Ptelea obscura sp. no v. 



Shrub slender, probably low, the slender twigs after the first sea&on dark-brown, 

 glabratCj closely regulose and strongly glandular, all the growing [>arts, including both 

 faces of the leaves, minutely and sparsely aj)pressed-pubescent; odd leaflet about 3 

 cm. long, narrowly rhumboid-ovate, broadest in the middle or below it, acute at 

 base, acutish at apex, lateral leaflets from U^ss to more than half as large, inequi- 

 laterally oblong-ovate, the leaf as a whoU^ of a light-green, the lower face lighter but 

 not glaucescent; flower large, solitary, the petals oblong-obovate, short-unguiculate, 

 densely puberulent without and withm; filaments long, but stoutly subulate, gla- 

 brous throutrhout: fruit not known with certanitv. 



Near Santo Tomas, lower California, May 17, 1SS6, C. R. Orcutt; type in the United 

 States Xational Herbarium. The locality of this is not, like that of P, aplera^ mari- 

 time, but well inland among the peninsular hills and nionntains, a fact which of 

 itself would betoken specific difference, esi)e(Mally on our i^acKic coast anywhere, and 

 on the peninsula of lower Caliiornia it would he little short of decisive. But there 

 are excellent characters of foliage upon which to establish P. ohsrura as a species; 

 and there is ground ior a suspicion that its fruit fui'nished the type of the figure of 

 so-called P. aptera in tlie third volume ol Garden and Forest, as I have suggested 

 below under that species. 



59, Ptelea aptera Parry, Proc. Davenp, Acad, 4: 39. 18S4. 



Plelea aptera Sargent, Gard. ^ Forest 3 : 'XV^. fig. 40- 1890, in ]>art. 

 Shrub much branched and rigid, about 2 to 5 meters high, all the growdng parts 

 appressed-pubesceiit, but twigs and branches after the lirst season dark-brown and 

 glabrate, rugulose and glandular-tuberculate: mature foliage unknown, tlie leaves at 

 early flowering small, with leaflets not very unequal, the odd one L5 to 2 cm. long, 

 narrowly obovate, obtuse, crenulate, the crenatures commonly obscured by the lev- 

 olute character of the whole mary:in: flowers sohtarv, or verv few and corymbose, 

 usually pentamerous, large, the filaments glabrous; Iruit wingle.-^s and nutdike, 

 round-ovate or subcordate-ovate, emarginate at apex, mostly less, rarely more than 

 1 cm. long, somewhat sinuately rugulose, and conspicuously dotted with coarse 

 tubercles, depressed or flattened at summit as if pustulate when growing. 



The above diagnosis is drawn wholly from Dr. Parry^s original specimens as col- 

 lected by himself and ^Tr. Orcutt from slopes of hills along the seashore at Punta 

 Banda, northern lower California, January 24, 188:3. These type specimens were made 

 available through the courtesy of Dr. Panimel, of the Iowa Agricultural College 

 at Ames, Iowa, wdiere Dr. Parry's herbarium is now in keeping. I recall that 

 Dn Parry, immediately after liis return to San Francisco from that expedition to 

 the peiihibula, reported to me the interesting discovery of a wingless-fruited Ptelea, 



