C*o. Engelmann, M.D. T * ä ~ f^V^ 



3003 I*o ou st Street. 



q St.LouiBpMo., Hov 16 1882. 



•^falcata® la jGT.tlnotoriada 1t a largo tree?) 



Solidago la unknown to me- but lt ls not well to do anything about 

 lt untll Gray ha 3 flnlahed hl 3 work on lt. 



Polytaenla f Centunoulua, Caoalla tuberoaa, Erlgeron dlvarloatum grow 

 here too* Aster Sortli not. 



Plnus Inops ls doubtlealy rlghtj ßuphorbiae too. 



Your Fhyaalla Vlrglnlana la a peoullar form,whieh oomes very olose 

 to lanoeolata, of which I poaaeaa almllar not so halry forma from the 

 Waat. 



Muoh eateemed Frlend 



many thanka for thlnga dlapatohed; exaininlng them I have put 

 down the notea above. In additlon t the Crataegus apeoimen are left. But 

 though the Speeles are dlf floult enough If one has flowera with young 

 and frults wlth old loavea t lt will be entirely impoaalble to determlne 

 apeolraena of leaves other than by gueaslng. 



Thanka for the pretty C. eordata f which we dld not have here at all; 

 the emall fruita afce llke the (searoely ever oordate) leave* very ohar- 

 aeteristlo. In future do pay attention to the atipulae, whloh more or 

 leaa f are found moatly on the young ahoota. Your corxiata whloh la Juat 

 bloomlng aeema to have already dropped them. They are often aeml* lunary 

 or falcate, aometlraea linear; but I do not know yet of what dlagnostlo 

 value they are. On Oxyaoantha thay are very well developed, on Ho. 2 they 

 are linear and amall and are dropped aoon. 



No.l probably C.arboreseena. 



No.2 la diatlnguiahed by the flabelliform nervea,that la to aay the 

 loweat nervea run far up and are muoh larger than the upper ones. I find 

 thla diatinet only In parvlfolla and flava (glanduloaa oertainly belonga 



