406 PROCEEDINGS OP THE AMERICAN ACADEMY 



leaves, seems not to have been met with since its discovery by Mr. 

 Wright in 1849. In all these species the anther-cells, though strictly 

 parallel, are slightly oblique in position : there is no dilatation of the 

 connective. The following is clearly a congener, and it takes with it 

 the amuiguous Dianthera parvifolia. 



Carloavrightia ovata. Caulibus herbaceis e caudice ligneo dif- 

 fuso-procumbentibus fere glabris hcvibusque gracilibus ; foliis caulinis 

 late ovatis acutis semipollicaribus penniveniis glabellis brevi-petiolatis, 

 ramealibus ovato-lanceolatis, superioribus ad bracteas calyce tamen 

 breviores reductis ; corolla purpurea ; calycis segmentis setaceo-subu- 

 latis stipitem capsulae cequantibus ; antherse loculis brevi-ovalibus parum 

 obliquis. — Rocky hills near the city of Chihuahua, Pringle, 995. 



Carlovtrightia pubens. Caulibus fere herbaceis e caudice lig- 

 nescente adsurgentibus cum foliis (ovatis obtusis paucivenosis petio- 

 latis) pubesceutibus vel hirsutulis ; calycis segmentis subulato-setaceis 

 stipitem capsula breviorem subcequantibus. — Dianthera ? ■parvifolia, 

 Gray, Syn. Fl. ii. 330 ; name inappropriate in the present genus. 

 Rocky hills near the city of Chihuahua, Pringle, %b. Mr. "VYatson 

 had suggested the reference of this plant to the present genus in Proc. 

 Am. Acad, xviii. 133. 



Carlowrightia cordifolia. Glabra ; caulibus e basi fruticulosa 

 diffusis gracilibus ; foliis majoribus dissitis membranaceis cordatis 

 acutis pollicaribus et sesquipoUicaribus cum petiolo gracili semipolli- 

 cari ; floribus secus ramos filiformes nudos laxe spicatis secundis ; 

 bracteis sepalisque minimis subulatis ; corolla alba ; antherte loculis 

 brevi-ovalibus contiguis sequalibus ; stipite capsula a^quilongo calyce 

 bis superante. — On ledges in the mountains above Batojjilas, Palmer, 

 224. 



Anisacanthus insignis. Gray, Syn. Fl. ii. 457 (SuppL), where 

 the species are revised. — A fine species, formerly collected in Chi- 

 huahua by Gregg, later by Palmer, and now, in better specimens, by 

 Pringle, 268. Dr. Havard found a form of it in the mountains on the 

 Texan side of the Rio Grande. INIr. Pringle also collected one or two 

 specimens of the true A. i-irgularis. 



Henrya costata. Tenuiter pubescens, decumbens ; foliis ovatis 

 parvulis (baud ultrapollicaribus cum petioli lin. 1-3 longo) insigniter 

 10-14-costatis cuspidulatis ; involucri bracteis mucronato-cuspidatis 

 hinc connatis ; corolla semipollicari, loculis antherarum elongato- 

 oblongis in,Tqua]ibus. — Near Batopilas, pendent from precipitous rocks. 

 Palmer, 211. It must be that Henrya of Nees is a good genus, and that 

 this is a distinct species. The corolla is said to be straw-color. 



