42 PROCEEDINGS OF THE AMERICAN ACADEMY 



pollicaribus ; corolla disci lobis fere imberbibus ; pappi paleis brevibus 

 iua^qiialibus, 1-3 subulatis ca^teris 2-3-plo longioribus. — Iluacbuca 

 Mountains, S. Arizona, Lemmon, 1882. A shorter-leaved form, ap- 

 parently of this species, was scantily collected iu the Santa Catalina 

 Mountains, in ISSl.f 



= = Subalternifoliaj, eapitulis sparsis. 



H. PEXTAcn^TCM, DC. (Gray, PI. Wriglit. 1. c), witli II. Berlandieri, DC. 

 Prodr. V. GJ2. 



H. Treculii. Laxe diffusuni vel decumbens, sublierbaceum, fere glabrum : 

 foliis crassiusculis pectinato-pinnatipartitis, lobis brevibus lineari-subulatis, 

 rliadii latiore. — II. n. sp. ? no. 13, Gray, Pi. Wright, i. IIG. — S. E. Texas, 

 Trecul. Too little known, 

 -t- •)- Ilerba annuse, depressoe, floccoso-lanosissima, Micropi modo ; foliis molli- 



bus plerumque alternis spathulatis integerrimis ; eapitulis brevi-pedunculatis 



vel sessilibus ; ligulis brevibus ovalibus. — Gnaphaliopsis, DC. 



H. Gnaphaliopsis, Gray, PI. Fendl. 90 (i/napliahiles) & 115, PI. "Wright, 1. c, 

 Gnaphaliopsis viicropoides, DC. Prodr. vii. 258. — Texaiio-Mexiean. 



§ 4. Thymophylla. Pappi paleffi 5-12, truncatae, muticae (nunc 3-4 interiores 

 Lreviter aristatiB vel aristiformes !), subeoriaeeaj, quandoque in cupulain con- 

 naUc — TIiymophijlla, Lag. Nov. Gen. & Spec. 25; Gray, PL Fendl. 91, & PI. 

 Wright, i. 110; Benth. & Hook. Gen. [Thjmophijllam). 



* Fruticuli Hijmenatheris acerosifoliis simillimi, sed albo-tomentosi : ligulsB sae- 

 pius nulli. — ThipnophyUa, Gray, 1. c. 



H. SETIFOLIUM. Tlnpnoplujlla selifolia. Lag. 1. c. ; Gray, PI. Wriglit. 1. c. t. 7, 

 fig. 10, 11. — Northern iMexieo. On this plant Lagasea's long unknown and 

 imperfectly characterized genus was founded, a little earlier than Ilyinenallierum, 

 whicii nevertheless it could not now well supersede. It was becoming evident 

 that tlie separate genus could not stand, when it was discovered that in some of 

 the specimens of no. .516, Parry ^- Palmer, there is an inner series of 3 or 4 

 aristate or aristiform palete, the plants mingled with and otherwise not distin- 

 guishable from those with the ordinary pappus of 5 or G truncate paleaa. 



II. Greggii. Thijmophijlla Grec/gii, Gray, I. c. t. 7, forma radiata. Pappus 

 cupuliformis, truncatus. — Texano-Mexican. 



* * Annua, glaberrima, pluriradiata, facie //. tenuifoUi, etc. — Lowellia, Gray. 



H. AURECM. Lowellia aurea, Gray, PI. Fendl. 89, PI. Wright, i. 118.— S. 

 Colorado and W. Texas. 



t TAGETES, Tourn. — The following are the principal species : — 

 § 1. Pcciidiformes, DC, integrifolia?, radiata?. 



T. LUCiDA, Cav. T. florida, Sweet, Brit. Fl. Gard. ser. 2, t. 35. T. Schie- 

 deana, Less, in Linnaja, ix. 271. 



§ 2. Macrocephalce, DC, pinnatifoliaj, eapitulis multifloris, ligulis exsertis. 

 * Laxe raniosa;, radice perenni, foliolis serratis, dentibus vix setigeris. 



T. Lemmoni ; vide supra. 



T. Parryi, Gray, Proc. Am. Acud. xv. 41. Puberula, laxe ramosa, 1-3- 



