SOME CALIFORNIAN MAPT.KS. 253 



d 



Ir* 



f 



dense short indument under the bristles, the wing appressed- 

 setulose throughout. 



Tassajara Hot Springs, Monterey Co., 1 June, 1901, 

 A. D. E. Elmer, his n. 3179 as in U. S. Herb., sheet 416370. 

 Species of peculiar foliage closely simulating that of the fern 

 Hemionitis paltnata both as to size and form. The samaras, 

 hardly larger than those of the eastern sugar maple, are of 

 barely one-third the size of those of A, macrophylhim. 



Acer dactylophyllum. I,eaves 4 to 6 inches long, 6 to 

 8 inches wide by even the basal lobes, the whole digitately 

 cleft into 5 not very unequal entire lanceolate lobes ; upper 

 face of leaf vivid green and polished, under a lens sparsely 

 and minutely setulose, but the mid-vein quite hirsute, lower 

 face with only a few setulae and these on the veinlets only, 

 the ciliation of the lobes little pronounced : samaras little over 

 an inch long, erect, their wings meeting in the middle, thus 

 enclosing an inversely triangular-lanceolate sinus. 



Species known to me in but a single branch sent me long 

 ago by Mr. Parish, from San Bernardino Mountains, gathered 

 in very mature leaf and well grown fruit 1 March, 1888. 

 The type specimen is n. 11419 of my own herbarium; but 

 there was sent along with it, and under the same label, but 

 with date 29 June, a totally different thing, in mature fruit, 

 and with the palmately lobed leaves of most maples of 

 America. The leaves of ^. dadylophyllum, as to their pattern, 

 are unique in the genus. Their circumscription across the 

 base, and then around from tip to tip of the five subequal 

 segments, is almost exactly semicircular, and they are as 

 nearly pointing forward, finger-like, as five segments of any 

 such semi-circular figure may be. 



■ 



Acer leptodactvlon. Leaves large and long-petioled, 

 the petioles 4 to 7 inches long, measurement of blade 5 to 8 

 inches lengthwise, 7 to 10 inches crosswise from tip to tip of 

 the largest pair of segments, the whole 5-parted into lanceolate 

 well tapering yet not quite acute segments either quite entire 



