392 PROCEEDINGS OF THE AMERICAN ACADEMY 



centia generis ; capitulis hemisphiericis multifloris ; involucri bracteis 

 flavo tinctis ; ligulis nullis ; corollis flavis, lobis ovatis fauce lato-cam- 

 panulata sequilongis ; acheniis obpyramidatis acutissirae 4-5-gonis. 

 aiigulis villosissimis ; pappo corolla et achenio breviore insigoiter pale- 

 aceo, nempe e paleis 12 lato-lanceolatis oblongisve costa valida excur- 

 rente aristellatis vel fl. exteriorum quandoque muticis. — In the moun- 

 tainous district 150 miles north of Batopilas, Palmer, 395. A very 

 interesting species in that it seems to connect the rayless H. Wrightii 

 with the radiate and yellow-flowered H. Wislizeni ; but not so welcome 

 in that the paleaceous and only awn-tipped i-ays of the pappus indicate 

 an approach to Bahia. Tlie corolla and involucre, however, are truly 

 of Hymenothrix. 



POROPHYLLUM Seemanni, Schultz Bip. in Seem. Bot. Herald, 308. 

 Near Batopilas, Palmer, 216. 



Tagetes Wislizeni, Gray, PI. Fendl. 92. Leptocephalce, spitha- 

 mjEa ad pedalem e radice annua ; ramis gracilibus patentibus uni-pauci- 

 floris ; pedunculis capitulo parum longioribus ; foliis pinnatisectis, 

 segmentis 7-13 (baud ultra-seraipollicaribus sunimis conflueutibus) 

 anguste-lanceolatis acutis inciso-dentatis, dentibus acutis muticis folio- 

 rum suprem. parvulorum tantum setiferis ; involucro fusiformi semi- 

 pollicari 4— S-dentato 8-12-floro ; ligulis 2-4 rotundatis lineam longis ; 

 pappo e paleis 1-2 sensim subulato-aristatis achenio isquilongis toti- 

 demque truncatis dimidio brevioribus, omnibus sfepius tubuloso-con- 

 cretis. — On the mountains at about 7,000 feet, half-way between 

 Batopilas, and on the Cumbre or f,\\mm\i, Palmer, 267. The specimen 

 of Wislizenus is depaupei'ate. In Proc. Am. Acad. xix. 43, I have 

 cited it under T. subulata, the T. multiseta of DeCandolle. But now 

 the present good specimens show that the leaves are none of them 

 bipinnately dissected, and only the bracteiform ones are setiferous. 



Tagetes Palmeri. Perennis ; caule quadripedali ramoso inferne 

 frutescente ; ramis ad apicem usque foliosis ; foliis pinnatisectis, seg- 

 mentis angustis lanceolatis sensim acuminatis acutissime serrulatis 

 (poll. 1-2 longis. imis cum panels hinc inde interjectis parvis subseti- 

 feris) ; i^edunculis corymboso-fastigiatis ultra-pollicaribus inferne gra- 

 cilibus sursum crassioribus ; involucro multifloro lato-campanulato (vix 

 ultra lin. 3 alto) 8-10-dentato disco breviore; lignlis 5-8 obovato- 

 oblongis emarginatis semipollicaribus croreis ; pappo e paleis sirpius 2 

 subulatis aristiformiluis cum 2-3 brevibus quadratis truncatis. — Same 

 habitat as the preceding, " near a spring, very showy and many-flow- 

 ered," Palmer, 267. To be associated with T. Parryi and T. Lemmoni 

 rather than with T. patula. 



