BOTANICAL GAZETTE. ii 



DiMORPHO-DiCHOGAMY IN JuGLANS AND Carva. — Referring to a 

 note by Mr. Pringle, in No. 12, Vol. 4, it may be interesting to note 

 that in the grounds of Dr. Dunton, in Germantown, there is a very 

 large Carya olivivformis, supposed to have been introduced to the gar- 

 den through the agency of Mathias Kin, in the early part of the pres 

 ent century, which bears nuts very freely every year, as I believe. 

 The nearest tree that I know of its kind is at the Bartram garden, 

 some fifteen miles away. Single specimens of /ii<:;lans cinerea are not 

 uncommon in Germantown gardens, with other trees a quarter or a 

 half mile away. Groups of them are not uncommon in the Wissa- 

 hickon two or three miles away from the gardens. These trees gen- 

 erally bear. Some years along the whole line of the Wissahickon 

 there is not a nut to be found. When there are any at all, they are 

 found on every tree. — Thomas Meehan. 



Mr. M. S. Jones' Colorado Notes. — Malvastrum coccinenm. — 

 Without questioning the accuracy of Mr. Jones' determination, I yet 

 teel moved to "suspend judgment" on the noxious qualities of this 

 species. Tt seems so incredible that a malvaceeus plant should have 

 this fearfully to.xic property, that it will be safer to believe the stock 

 men have not sent the real culprit. "Twelve hundred sheep dying 

 in four hours," does not strike those acquainted with the vegetation 

 about Pueblo, and the nature of the ovine constitution, as being par- 

 ticularly careful records of the facts. 



Ncillia Toirevi. — In addition to the pubescent ovaries, it maybe 

 noted that the calyx and i)edict"ls have the same character, — the calyx 

 indeed often quite woolly. This is parlicularl]^ the case with speci- 

 mens I collected in 1871, in what is now Englemann's canon. This 

 thick pubescence seems to follow all the forms found in Colorado, and 

 is a good distinguishing mark from the Eastern species, N'. oppiilifolia. 

 Beside there is another good character not noted by Mr. Watson, in 

 the calyx, which has its sepals ohtuse, while in the Eastern species 

 they are apiculate as the carpels are. Botanists speak of the N. 

 Torrcvi as a "small species with small leaves and flowers," but this is 

 only true as regards the altitude at which it is found. I have some 

 specimens gathered in 1873, t^xact locality not noted, in which the 

 whole plant was not probably over a foot high, with the leaves smaller 

 than the most stunted Ribes rotuiidifolium, which in that conditifui, 

 they much resemble. Some from the high hills at the entrance to 

 South Park, through Golden Gate, gathered in 187 i, were from plants 

 two to three feet high, — while the specimens gathered near the mouth 

 of Englemann canon, in 1871, were from bushes, as large as the aver- 

 age of those we see of N. opuUfolia in the East. 



Aqiiikgia chrysantha.—Mx. Jones says he ha.?, 'iQQn A<j 11 ilegia c/iry- 

 santha "occasionally," with "both colors of flowers on the same 

 plant." By "both colors" I infer he meant the blue of A. coerulea 

 and the yellow of A. chrysantha. This would be a valuable fact if 

 there be no mistake in the plant in Mr. Jones' mind. As he refers to 

 finding the plant near "Colorado Springs," I may fairly suggest some 



