OF ARTS AND SCIENCES : FEBRUARY 13, 1872. 371 



Phtsostegia intermedia. Caule gracili ; foliis remotis lineari- 

 lanceolatis repando-denticulatis ; spicis filiforaiibus saspius remotifloris ; 

 calyce brevi lato-campanulato, dentibus triangularibus acutis tubo 

 requilongis ; corolla (vix semipollicari) fauce valde ampliata. Dra- 

 cocephalum intermedium Nutt. Fl. Arkans. — W. Kentucky and Ar- 

 kansas to Louisiana and Texas. Variable as P. Virginiana is, it 

 does not include this, I think. 



Phtsostegia parviflora Nutt. ex Benth. in DC. P. imbricata 

 Bentb. in DC, non Hook. ! Tbis, again, is a pretty well marked trans- 

 montane species, which must bear the name imposed by Nuttall : it is 

 very different from Hooker's P. imbricata, which is one of the larger 

 forms of P. Virginiana. 



Macbridea Ell. The calyx is pentamerous, but the two sepals 

 which ordinarily compose the lower lip of the calyx are united (in M. 

 pulchra Ell. almost wholly, in M. alba of Chapman usually but par- 

 tially) with the lateral sepals, which, moreover, are free from the pos- 

 terior sepal down to the throat. The anthers are pilose on the inner 

 side, as is not uncommon in Labiatas, and by no means, so far as I have 

 seen, inside, as the phrase " intus filamentis pollini commixtis pilosaa " 

 would imply. 



Stachys Bigelovii. S. coccinece admodum affinis, undique cine- 

 reo-puberula ; foliis caulinis deltoideo-lanceolatis subcordatisque grosse 

 crenato-dentatis (pollicaribus, cum petiolo gracili), floralibus sessilibus 

 lanceolatis floribus sessilibus plerumque brevioribus ; spica interrupta 

 angusta ; calycis dentibus subulatis tubo campanulato subdimidio bre- 

 vioribus ; corolla (rubra ? tantum semipollicari,) tubo gracili calyce 

 subduplo longiori, labio superiori quam inferius breviori. — W. Texas, 

 in the crevices of rocks on the Limpio, Wright (no. 1535), Bigelow, 

 ex Torr. Bot. Mex. Bound, p. 134, where it is doubtfully referred to 

 S. coccinea. Color of corolla not recorded, seemingly not scarlet. 



Trichostema Arizonicdm. Puberulum, multicaule e radice vel 

 caudice ligneo perenni ; ramis simpliciusculis (semi - sesquipedalibus) ; 

 foliis ovalibus ovatisque breviter petiolatis, floralibus parvis pedunculis 

 racemosis gracilibus cymoso 3 - 5-floris 2 - 3-plo brevioribus ; calyce 

 campanulato subrequaliter 5-fido requali, lobis ovato-lanceolatis corollae 

 tubum adasquantibus ; lobis corolke spathulato-oblongis declinatis. 

 (Pedunculi circa pollicares : bractaa minutre : filamenta subpollicaria.) 

 T. dichotomun Torr. Bot. Mex. Bound. 1. c, non L. — S. borders of 

 Arizona, on the slopes of the Chiricahui Mountains, Wright, no. 1541. 



