102 



A few (iliservatioiis as lo tin- ocriin'eiu-*' iiiid liahicit ol a t'tnv plants n\ny be 

 interesting. In the rii-Ji sandv land along tlio river bottoms tlu' commonest shrubs 

 are the biittoii-biish, or Cepalaidhua ocCKicntdli.H. !>., StiUingiu .v^lrntica, 1... Rhus 

 copallina, L., and others. On Stilh'n(/ia was found an A-^cidiimt which has not been 

 reported on this host, as far as <an be deternjined. 8omewhat abundant in simi- 

 lar places were Arr/envme platycrroi'. Link and Otto, Calllrhoe involucrata, < 'lay,. 

 Dalealaxifiora, Pursh., FntHcJiMi jlirridamt. y[oi\., Jinlic/ofi'r<i hptoaepala, ^\Ut., and 

 Aph(in6stephii.'< ramo!^lsHim.iis, I). C. In wet and salty sand near the river, were 

 Pluchea cinuphorata, I). ('., Srsin-iinn p(>rlul<ici(.<lriiiit, L. . and in dry sand, Cyclolnma 

 platijphyUmii, Mo(|., IhicchariK (fhilliKD'fi, I'ers.. and Ihilra lanata, Spreng. *riu' lat- 

 ter is reported in (iray's Man., to have "3-4 pairs'" <<( leaflets, while 6-7 pairs 

 were more usual on the s|)eciniens collected. ( )n the high bluHs of the river Vncea- 

 anguKti/oli((, Pursh., was occasionally met with. 



In the woods which extend back I'roni tiic i-ivcr bottoms two or three miles 

 are Cos.S'j'a Chamccrli^ta. IJ.. .-ind ('. alflilii,i.<. I,., or "'sensitive plant," flowering 

 especially abundantly durinu .Inly and August ; ('llturid VKiriaiia, L., Gaura villosa, 

 Terr., Oenothera biennis, L.. var. ;/inii(lillor(i. l.indl.. a beautiful passion ib>wer, 

 Passiflom incamatn, L., Lictiis ■•'(jHtnrona. Wilbl.. < 7(/i/><y<.x-('.-- rlllnsa, Xutt , in inaviv 

 of its variable forms, A-<clfj)iaH ri'rtirl/lald, I,., and.l. ateiiophijlld, < Jray, and low 

 shrubs of buckthorn, Iliiinella l(iniii/ino.<(t, I'crs. < )iic perhaps noteworthy jjoint 

 was the occuri'cnce of Liidfii/in (iltcmifolld in sandy but perfectly flrij ravines. 

 (Cray's manual rt^jxirts the hal)itat of this as ■■sw;imps." 



The whole prairie region is cliai'aclcri/.c<l by ;ui al)nndance of plants btdong- 

 ing to the orders Li'(/i(iiiiuii.<ii' and ('<>iiij}ii.''ifii . I'ai'ticniariy al)undant on the 

 prairies are Petalonfemon vmlfiflorits, Nun . /'. nuhici-iis, Mx.. Aiiwrpliu wo/cscfM.'?, 

 Nutt.. I>esiii(nilliiis Jdiner'ii. T. and (1., l>alra ann-n, Nutt., Solidofjo Missoiiriensia, 

 Nutt.. Ht'liiiiithu.'f inoUi^, \jiiiu. ,' Hii'roriinn lonffipilmn, Torr. The fact is sign! ticant 

 that of the 175 si)ecies collected, .'>.H were Le(/iiiiii)i(is<r and '.VI were ConipoHitw 

 Suhbatia (inf/iilrtiiK. I'nrsh., .S'. ramprnfris. Nutt.. and BucIuk id Americana, L., give a 

 great deal of color to the prairies during June and .July. Linnm sulcatum, Kiddell, 

 Ceanolhus Americans, \... Jatropha stimulosa, Michx., Euphorbia corollata, L.. E. 

 pi'taloiiit'u, Eng., E. inarj/inuln. Pursh.. occur on the richtr prairies, while Q^nolkera 

 Missoii rieiisis, Sims., Hotiflrmia uiKjuntlfolia, Mx., Sfenoslphoii rir(/atits. Spach., Opun- 

 tia Mi.-isouricnsi.'', J). C, and Gerardia dennlhira, Benth., are found on dry, sterile 

 prairies. A very severe case of poisoning was iui'urred from collecting Euphorbia 

 corollata, L. This, 1 believ<\ has been mentioned in the IJntanical Oazette as one 

 of our |)oisonous plants. 



