BRAZORIA TRUNCATA. 35 



B. TRUNCATA I caule pubescente ; spica densa ; calyce 

 bracteam ovatam sequante basi hirta, lobis brevissi- 

 mis dilatatis labii superioris mucronulatis, inferioris 

 eroso-denticulatis ; labio corollse ad faucem postice 

 villos9B superiore breviter bilobo, inferiore subse- 

 qualiter tripartite, lobis reflexis apice bifidis emar- 

 ginatisve, omnibus crenulato-erosis. 



B. truncata, Engelm. 4- Gray, I. c, no. 287 (excl. syn. Hook. Bat Mag.). 

 Physostegia truncata, Benlh. Lab., p. 505, non Hook. 



Hab. In provincia Texas {Berlandier, Drummond, 

 Wright), preesertim secundum fluvium Brazos dictum 

 (unde nomen genericum), in campis arenosis, formiceta 

 derelicta diligens, ex Lindheimer. Floret sestate. 



This plant was first gathered by Berlandier, who communicated 

 to Sir William Hooker the "very indifferent specimens" from 

 which Bentham described it, in his excellent monograph of the 

 family, under the name of Physostegia truncata. Had he possessed 

 fruiting specimens, he would scarcely have joined to Physostegia a 

 plant so distinct in its floral characters, however similar in aspect. 

 Good specimens were afterwards collected by Drummond, who, 

 "in 1833 and 1834, found it abundantly about San Felipe de Aus- 

 tin, and communicated specimens and seeds to Europe." * They 

 were distributed under No. 274 of his third Texan collection, 

 mixed, however, with those of a different species. It was from seeds 

 of this last species that the specimens were raised which Hooker 

 figured and described in the Botanical Magazine (t. 3494), mistaking 



• Hooker, Bot. Mag., sub. t. 3494. 



