136 JOURNAL OF THE ARNOLD ARBORETUM [vol. i 



Quercus aliena Bl. var. pubipes, vur. nov. 



A ty'j)o })raocii>uc differt fuliis minoribus latitjribus subtus pilis fasciculaist 

 subejrctis nd costam nervosque dcnsius in facie si>ar.slus obsitac, petiolis 

 pul)Oscentibu.s circiter 1 cm. longis, rauiulis novcllis parce strigoso-j)iiosis. — 

 Folia <)l)()vata, 7-10 cm, longa et 4-8 cm. lata, obtuse dentala dentibus 

 utrinqiie 8-10, sii}»ra o])acc cyaiico-viridia, fere glabra, subtus cincreo-viri- 

 dia, molliter pul)escentia. 



CiiixA. Chikuiig-shan, border of Ilonan and TTupeh, alt. 1500-2500 feet, 

 low slirul), 3-4 feet, June 13, 1917, L. TL Bailey. 



Though the si)eeimen before me is sterile I have little doul)t that It 

 belongs fo Q. alieva Blume from the typical form of which it diiFers, how- 

 ever, markcilly in the sparingly pilose branchlels, in the i>nbescent petioles 

 and in the grayish and soft ])ubescence of the under side of it:i leaves, par- 

 ticularly dense on the midril) and on the nerves which are quite glabrous 

 in the ty])ical form, while the surface is covered ]>y a whitish dense to- 

 menturn. On account of the broadlv obovate gravish ])ubescent leaves this 

 variety has the api)carance of a small-leaved form of Q, dodala Thunberg, 

 but that si)ecies is easily dislinguished l)y the lomentose branehlets and by 

 the nearly sessile more coarsely toothed and usuallv very large leaves. 



In the same locality Dr. Bailey collected a specimen of Q. alicna which 

 has the under side of the leaves nearly glabrous or only si)arlngly ])ubesccnt 

 and whicji T refer to Q. aJicna var. pellucida Blume. To the same variety 

 a])parcnlly belong s])ecimens collected by Dr. Bailey near Kiosliau In the 

 province of Ilonan of which one is remarkable for its slender petioles 2-3 

 cm. long and for the auricle<l base of the leaves which are 9-15 cm. lon<^ 



Quercus dentata Thunberg. 



I'hougli Thunberg's dcscri])tion of Q, dentata can hardly be api)lied to 

 any other species than the one generally known under that name, a glance 

 at his figure in his Iconcs Plant. Ja]>. v. t. [G] creates a sus}>iciou that 

 ^J1und>crg's species nuiy {)ossibly not l)e our Q, dentata. The branch repre- 

 sented in that plate looks much more like Q. alicna var. acutcscrrata Maxi- 

 mowicz [lian our Q. dentata. Upon my request Professor O. Juel has kindly 

 sent an excellent photogra])h of Thunl>erg's tyi)e consisting of a flowering 

 branch with half-grown hvivos and tells me that this specimen is the only 

 one lalx^lcd Q, dentata In Thunberg's o^\-n handwriting. The j)hotogra{)h 

 shows that the sj)ecimen represents without the slightest douI)t our Q. 

 dentata, but as the leaves are only half-grown, they have not yet reached' 

 their full witlth and their unconiplefely developed lobes look more like 

 acnUsIi teeth. In comparing the photogra])Ii with the plate one readily 

 sees that the drawing has been based on this specimen, but the artist ap- 

 ])arently took many lil)erties particularly in representing the leaves as 

 distinctly petiolcd and the lobes of the leaves as more acule and more regu- 

 lar than they really are, and in selecting as the ty[)c for the leaves the nar- 

 rowest of the half-grown leaves, neglecting entirely the more developed 

 broader heaves on the specimen. 



