PEXTANDRIA MOXOGYX)A 119 



88. ONOSMODIUM. Mx. JSfutt. Gen. 174. 

 [So named from its resemblance to Onosma ; another genus of plants ] 



CnljfX deeply 5-parted. Corolla tubular-campanulate ; limb 5-clcft, 

 the lobes acute, connivent ; throat ventricose, naked. Stamen* subset 

 silo, included. Style much exserted. Nuts imperforate at base, 

 #voiu\ shining. 



I. 0. hispidum , Mx. Whole plant hispid ; stem branched ; leaves oval- 

 lanceolate, nerved, papillose-punctate; lobes of the corolla lanceolate. 

 Beck t Hot. p. 252. 

 Lithofpermum virginianum. Willd. Sp. 1. p. 752. Ait. Ktiv. I. p. 287. 



Muhl. Catal.p. 19. 



Purshia hispida. Bart. Phil. 1. p. 103. 



Hispid oxosmodicm. 



Root perennial. Stem about 2 feet high, branched, scabrous. Leaves 2 to 3 in- 

 ches long, and about an inch broad, varying from oblong-lanceolate to lance-ovate, 

 Icute, sessile, nerved, hispid with oppressed hairs proceeding from small papilla*. 

 rioxcen in terminal leafy racemes, at first recurved and nodding, finally erect. 

 daly x-aegynents subulate, hispid-ciliate. Corolla pale greenish yellow, rather 

 longer than the calyx, pubescent; lobes lanceolate, acute, ciliate near the ape* 

 villi a few bristles. Stt/lc twice as long as the corolla; stigma simple, small. 

 Vuts ovoid, angular on the inner side, with numerous depressions on the surface, 

 # rey, shining, one or two often abortive. 



Hah. Great Valley ; Warren: Brooke's Mill, &c. : not common. Fl. June. Fr. Aug. 



Obs. Collected by Mr. Joshua Hoopes, in 1823. A rough, homely, native weed. 

 There is one other species in the U. States. 



89. ECHIUM. /.. JK'utt. Gen. 170. 

 [Greek, Echis, a viper ; from a fancied resemblance of the seed to a viper's head.] 



Calyx 5-parted. Corolla irregular, subcampanulate ; limb unequally 

 and obliquely 5-lobed ; throat open ; tube short. Stigma biiid. Nuts 

 imperforate at base, tuberculate, obliquely acuminate. 



1. E. tulgare, /,. Stem tuberculatc-hispid ; leaves linear-lanceolate, 

 hispid ; flowers in lateral secund spikes ; stamens longer than the corol- 

 la. Becky Bot. p. 353. 



Coxxov Eciiium. Vulgo — Blue weed. Viper's Bugloss. Blue Devils. 

 Gall. Herbe aux Vipcres, Ger. Dcr Natterkopf. J/isp. Yerba de la vibora. 

 Root biennial. Stem 2 to 3 feet high, branched above. Radical leaves long-lan- 

 ceolate, petiolate ; stem leaves linear-lanceolate, acute, sessile ; all hispid and pa 

 pillose. Spikes numerous, axillary, secund, and at first recurved, finally ereci. 

 Calyx-segments linear, pectinate-ciliate. Corolla at first purplish, finally bright. 

 Mue, pubescent externally. Stamens exserted. Style filiform, pubescent, bifid at 

 apex. Nuts subovoid, angular on the inner side, keeled on the back, a little incur- 

 ved and acuminate, rough with tubercles, of a greyish brown color. 

 (tab. Near Downingtown: rare. Fl. June. Fr. August. 



Obs. This vile foreign weed is extremely troublesome in some portions of our 

 Country / but is fortunately rare, as yet, in Chester County. Tt behoves our farm- 

 ers, however, to be on the alert, to ksep it in subjection. It was first observed in. 

 the Great Valley, near Downiagtown, m 1828, by Mr. Joshua Hoopbs . The E. r< 

 ilaceum is cultivated in some flower gardens ; but there is no native species,— and 

 tae foregoing is the only naturalized one in the U. States. 



