i 



PLANT^ WRIGHTIANtE 







late 



compressum 



tyl 



oiio"iim 



stigma cordatuiHj bilobura, lobis ad pla- 



ccntas rcspondentib 

 plano-compressa, uti 

 duplicatis, dorso teii 

 serialia, e funiculo 

 lineari-oblongoe, plo 



Siliqua breviter lincaris, septo angusto subener 



itusa, stylo conspicr 

 uninerviis. Semina 



superata 



lib 



;ro pendula, ovalia, turgida, 

 septo (ut videtur) parallelse, 



valvis naviculari-con- 

 plurima (20-40), uni- 



nnmarg 



Cotvlcdoncs 



radiculai adsccndent 



bentes. — SufFrutex humilis, pube moUi stellata canescens ; caulibus a basi ramosig 



difFusis; foliis spathulatis sgepius 

 tatis ; racemis laxis ; floribus maj 



r 



longis) pedicello cequalibus vel sub 



pandis vel 



dentatis in petiolum 



albis ; siliquis 



pubcrul 



8 lin 



11. Greggia camporum. (Tab. I.) High prairies and 



head of th 

 since, " we 

 Greffer, the 



San Felipe; 



of Parras" 



( 



and fruit) 



Al 



gathcred, some ycars 



Cohahuila, and 



Cer 



13 



Dr. Josiah 



the " Commer 



f the Pr 



and 



othcr writings on the 



physical character 



and resources of New Mexi 



and 



has for 



al years past been a most diligent expl 



and collector of the botanical 



Intelligence of his lamen 



treasures of New and Northern Mexico. 



California, (from over-exertion in scientific investigation in the interior,) ha^ing 



reached me while engaged in the study of this intcresting plant 



of h 



discov 



I dedicate the genus 



memory 



and 



gi\ 



that associates it with the pl 



of the S 



which this entcrprising dis- 



has so 



'cd and so ably illustrated. The genus formerly ded 



Gregg by my friend and colleague, Dr. Engclmann 



Cowania 



of 



doubt. a true Covi 



to be the 

 It will 



be seen that the Cruciferous plant here described and illustrated, from Mr. Wright 



specunens 



the same 



that 



It 



is briefly noticed in Plantce Fend- 



ive, as I suspected, 



h 



which abundantly distinguish 



lenamE, p. 116, in a note, under Synthlipsis 

 incumhent cotyledons, as well as other chara 

 from the last-named genus, notwithstanding the similarity in aspect and in the 



lateral compression 



of the pods. If the pod be deemed a siUcle, the 



fall into the tribe Lepidineee of De CandoUe 



D 



be 



of pl 



If it be called a silique, the strong 

 m to exclude it from the Sisymbrieoe. 



where it wouUl appear 

 ;omprcssion contrary to 

 The flowcrs are appar- 



tly somewhat handsome; the broad and rounded petals are 



long, 



ly four Unes 



mveloDCS the 



including the abrupt claw. — The mucilaginous mass which envelopcs 

 of most CrucifercE when moistened is here pretty evidently seen to arise from 



surface of the testa, and the uncoiUn.2: and 



the disruption of deUcate ceUs on the su 



softcnins of a contained "^ebitinous coil, as in CoUomia, &c 



12. 



longis 

 oblongisve 

 brevi ; 



PUBENS 



(sp 



Hymenolobus 



densiiloris pube stellata subciner 



) : caule erecto ramoso racemisque prse 



foliis caul 



glabr 



lanceolatis 



parce dentatis (imis 



b 



) ; silicula 



pubescent 



tyl 



,piculat 



Margins of a pond 



Pecos ; August 



Annual 



3 



, in a vdley about eighty miles beyond the 

 from twelve to twenty inches high, including 



the fully-developed fruitin 



hich are from 



six 



inches lonsr. rather 



o 



m 



I 



i 



m 



