144 



r 



is I think, quite distinct from both Acacia, and Mimosa. It is, as D. 

 C. observes, Hermaphrodite, or bears perfect flowers; and, having 

 constantly 5 stamens, I believe ought to be placed in the class Petit- 

 audria. You will perceive that your ^^//^rzV description will admit 

 of some amendment, as feiv seeded, instead of " many " seeded, &c. 

 I observe a few typographical errors in the sheets last received 

 from you ; but as it will probably be too late to correct them, I will 

 not trouble you now with enumerating them. 



_ I am pleased to see, by last Silliman's Journal, that Dr. Beck is 

 gomg to publish a work on our Ferns and Mosses. I have long 

 wanted such a work, to enable me to study those plants with more 

 success than I have heretofore had. I hope he will point out the 

 proper season for investigating each tribe with most advantage. Be 

 pleased to suggest to him to designate the month, or time when the 

 Iructification of each plant is in the best state for examination, 

 somewhat as \.\^t flowering of phoenogamous plants is usually noted. 



I wish I could aid you in your geological researches, by remarks 

 or otherwise, but I am too much of a tyro in that science to venture 

 It is quite a favorite subject with me, but I do not feel competent to 

 offer suggestions on it at present. Excuse my tedious epistle. 



Yours respectfully, 

 Prof. Amos Eaton . Wm. Darlington. 



Rensselaer School, Troy, N. Y. 



r 



138 Malvastuym angustum in Illinois.— I have found in 



this neighborhood Malvastrum angustum which was found by Eng- 

 elmann and Parry on Rock Island, on a spot now covered with build- 

 mgs. It was supposed to be extinct in Illinois. Wood does not 

 recognize it. It was found late in the season, and I have only fruited 

 specimens for exchange. Of these I can furnish a considerable num- 



Ottawa, 111. 



H. L. BOLTWOOD 



^ 139. MarsiJUa quadHfolia— The mention of this plant in the 

 November number of the Bulletin reminds me that many years 

 ago the late John L. Russell, of Salem, gave me a specimen of it which 

 he told me he had cultivated in his garden from plants procured by 

 him at the original station. It is not unlikely that he also planted it 

 in ponds in that vicinity, and that its occurrence there now is due to 

 this propagation. 



New Bedford. Mass, 



W 



§ 140. Notes from Stalen Island.-/?/,^^ copallina, L This 



species commonly known as dwarf sumac, is described by Gray as 

 being from 1-7 it. m height. I have commonly found it higher tL . 



1; Tl "fV?n helT ' "'h' ''' ^'^^^^^ ^°'^' P-^ Richmond 1 

 I IS full 2^ ft. in height and towers considerably above the tons of 



Carpinus, Cor mis, etc., with which it grows ^ 



• K^'^f '"'"1^^^^'^ '^»t. On Saturday, Oct. 22nd, I found this sd^^- 

 cies in fu 1 bloom and with other buds in differen stages of .^0'?^ 



fmfnfr^Pr'"'' •"-'"' Ri^l^^^ond. S. I. On the following^ day 1 

 found several specimens of Viola pedata, L., near New Brighton, S. L 



Arthur Hollick. 



