BOTANICAL GAZETTE. i88 



and the names of Gray, Watson, Goodale, Farlow, Austin, Halstead, 

 Faxon and Collins ensure accuracy of determination. 



The Catalogue will serve to stimulate the botanical section of the 

 Middlesex Institute which has in contemplation the publication at an 

 early day of a complete Catalogue of the Middlesex Flora. — G. E. D. 



Notes from Arkansas. - Hearing of some very large trees of 

 Chinquapin in Arkansas, that were reported as 15 and 18 inches in 

 diameter, I went to see them on the Washita river. 



The tree is not uncommon about Hot Springs, Ark., near the 

 base of the mountains many were seen tiiat appeared to be 12 or 

 more inches through aiid one that was carefully measured gave a cir- 

 cumference of six feet plump, which is equal ro two feet diameter at 

 stump high. I w.is informed that they were used in some places for 

 rail timber, but all that I saw were low-headed and could furnish but 

 one cut for such purpose. 



When conversing with Dr. Engelman respecting these trees he 

 reminded me of a mistake made by a distinguished botanist, who 

 havmg heard of these trees, and possibly seen them in the winter 

 mistook them for Castanca vesca. It is still believed that our chestnut 

 is not found west of the Mississip]M. 



In the same regi'-n Magnolia tripdala was seen of large size, reach- 

 ing a diameter of eight inches. 



About Hot Springs the pines were all P. tiiifis, and the line of the 

 St Louis, Iron Mt. and Southern Railway about Malvern Station 

 seemed to be the meeting place of P mitis and P. australis, ujion the 

 borders of the melamo phic rocks and the Cretaceous and Tertiary 

 formations. Near this latter jjlace the Magnolia grandijiora and Ilex 

 flpaca are found. Near Hot Springs seven oaks were seen; Q. alba, Q. 

 MiiJilenbcrgii, Q. nigra, Q. /alalia, Q. tinctoria, Q. rubra, Q. obtnsiloba. 

 Q. imbricaria, at Iron Mt., Mo., had leaves 83)^ inches long including 

 the short petiole, by 5^ inches wide. -J no. A. Warder, North 

 Bend, Ohio. 



Rudbeckia riipPStris, ll. sp.— Stem (3°-5°) and leaves spar- 

 ingly hairy, branches elongated and terminated by single large heads ; 

 upper leaves ovate lanceolate, coarsely serrate, sessile, partly clasping, 

 the lower 3 parted, with deep rounded sinuses, the lower lobes stand- 

 ing out almost halberd shaped, with margined petioles, the lowest 4' 

 in length and breadth, on long pcioles (3'j, radical leaves undivided, 

 rhomboid-oval; disk large (^')> globular, black purple; rays 10-13, 

 I'-i}^' long, linear-oblong, uniform orange yellow ; involucral scales 

 few, spreading, long lanceolate, hirsute, leaf like; chaff of the disk 

 toothed tapering into a slender awn. 



Differs from R. triloba in the thicker, larger and more halberd 

 shaped leaves, in the fewer (3-5) but much larger heads, and longer 

 rays with no change of color near the disk; and from R. subtomentosa, 

 in its smoother, thicker, and broader leaves, in the color of the rays, 

 and in the awned chaff of the disk. 



Found abundantly on the rocky slopes of "Litde Roan," N. C, 



