OF ARTS AND SCIENCES. 43 



Pectis. Mr. Bentham remarked, in Gen. PI. ii. 412, that the sec- 

 tions of Pectis proposed in PI. Wright, i. 83, might probably be recast 

 with advantage. The genus is very natural ; and, although two or 



pedalis ; raniis monocepbalis, capitulo majusculo in pedunculo nudo saepius elon- 

 gato apice turbinate fistuloso; foliis oppositis et alternis ; foliolis ovalibus 

 oblongisve ligulis 8 latis ultra-semipoilicaribus ; corolla lobis intus barbatis, 

 dentibus patentissimis. — Hills southeast of San Luis Potosi, Mexico, Parry <^- 

 Palmer, 504. Now in cultivation ; a liaudsome but late- and si^arseiy-flowered 

 species. 



T. Zypaquirexsis, Hurab. & Bonpl. of New Granada and Ecuador, to wliich 

 the above has some affinity, althougli said by Bonpland to be annual, is probably 

 perennial. A specimen of coll. Andre is ticketed " Frutex dumosus." 



T. ELLiPTiCA, Smith, of Ecuador or Peru, is unknown as to duration, and 

 may also be perennial. 



T. PAUCiLOBA, DC. A suffruticose Chilian species, with small linear leaflets, 

 very little known. 



« * Annuas, foliolis lanceolatis seu linearibus s^pissime pinnatifido-dentatis, 

 dentibus fol. juniorum plerunique setigeris : i)appi paleae nonnullEe aristi- 

 fornies, demum ultra involucruni exserta}. 



T. PATULA, L. ; Sims, Bot. Mag. t. 150, etc. T. erecta, L. ; Lam. 111. t. 684, 

 etc., grosser form, enlarged by cultivation, the peduncle ventricose-dilated under 

 the thick head. T. coryinhusa, Sweet, Brit. Fl. Card. t. 151 ; Hook. Bot. Mag. t. 

 3830; the latter a more slender and normal form. 7\ remotijiora, Kunze in 

 Linnjea, xx. 23. To this doubtless no. 3204 of Boitrgeau is to be referred ; while 

 583 goes rather to the following. The lines between the two are difficult to 

 draw. 



T. TENUiFOLiA, Cav. Ic. ii. 54, t. 169 ; HBK. Nov. Gen. & Spec. ; Hook. Bot. 

 Mag. t. 2045, perhaps originally from Mexico, rather than " Peru." T. peduncu- 

 laris, Lag. & Rod. 1802 ; DC, etc. ; smaller forms, with shorter and more laciniate 

 leaflets. T. lunulala, Ort.'i Z". e/o?!r7a^a, Willd. Spec. iii. 2127 ? T. sirptala, JisiTll. 

 Ind. Sem. Gcett. 1837, & DC. Prodr. vii. 292; Kev. Hort. 18G3, t. 11, a floribund 

 variety of cultivation. 



T. suBviLLOSA, Lag., is a still unrecognized Mexican species. 

 § 3. Leptocephalce, DC, pinnatifoli^, annure, capitulis pleruraque angustis, ligu- 

 lis paucis inconspicuis raro nuUis. 

 The Mexican species known to us appear to be the following: — 

 * Foliola vel segnienta serrata vel incisa. 



T. FCETiDissiMA, DC — Well characterized by its numerous oblong-linear and 

 obtuse leaflets, serrate with very many teeth ; shortpeduncled narrow heads, 

 mostly clustered at the summit of the branches, and the one or two awns of the 

 pappus fully the length of the akene. This, rather than T. coronopifolia, Willd., 

 may be T. clandestina, Lag. 



T. SUBULATA, Llave & Lex., Nov. Veg. Descr. i. 31. T. midtiseta, DC, and 

 probably T. oUgocephala, DC. T. Wislizeni, Gray, PI. Fendl. 92. — Known by 

 the 1-2-pinnately divided leaves, with subulate mostly long-setiferous divisions 

 or lobes, long and filiform peduncles, and awns of the pappus very much longer 



