FERNALD. — GENUS PECTIS. 61 
were: “ Pappus disci 2-serialis, ser. ext. piliformi, brevi, interiori anguste 
paleacea, serrata, longa; radii nullus aut dimidiatus, coroniformis, brevis.” 
To this genus he transferred Pectis canescens, at the same time describ- 
ing L. saturejoides which differs from typical ZL. canescens chiefly in 
having no tay-pappus. In the same work Lessing instituted the subtribe 
Peetideg + (then placed under Vernoniacee) to include Pectis, Lorentea, 
Andromachia, Liabum, and Cacosmia. 
In 1831 Lessing ? took up critically the genera of the subtribe Pectidee 
as he then understood it, i.e. Pectidium, Pectis, and Lorentea. The 
new genus Pectidium had “ Pappus aristis, paucis, subulatis, planis, 
rigidis, corneis, basi incrassatis, lavissimis, inaequalibus, achznio breviori- 
bus, demum divergentibus”; and the single species Pectidiwm punctatum, 
founded upon Pectis punctata, Jacq., is described as having on the disk- 
akenes two ariste, on the ray-akenes three. Note that in the original 
generic description Linnaeus says “ Pappus aristatus,” * and that the char- 
acters of Pectidium are those ascribed by Cassini to “true Pectis,” 
including P. linifolia, L., and P. punctata, Jacq. The genus Pectis 
(including Cryptopetalon and Chthonia, Cass., and Lorentea, Lag. not 
Less.) Lessing characterized by “ Pappus uniserialis, serratus, aut late 
paleaceus, paleis 1-nerviis, semilanceolatis, in setam desinentibus, seepe 
setigero-laciniatis, aut setaceo-paleaceus.” In the genus as thus defined 
he placed P. ciliaris, L., P. linifolia [Less. not L.], P. angustifolia, 
P. elongata, \P. Bonplandiuna, P. pygmea, and P. prostrata; and a 
humber of new species, P. Swartziana founded upon P. ciliaris, Swartz,* 
part, and four others from the West Indies. To the genus Lorentea 
he added Z. humifusa (Pectis humifusa, Swartz), and a new species, 
L. sessiliflora, which we know only from South America. 
n 1832 Torrey’s Pectis angustifolia was taken up by Rafinesque ® 
under the name Helioreos, though this name appears to have been 
°verlooked by the subsequent authors who took up De Candolle’s 
ectidopsis. 
_In the Prodromus De Candolle ° accepted, with slight modifications, the 
Views of Lessing. He took up the original subtribe Pectidee of Lessing ;* 
but of his later subtribe Pectidee * he made the division Hupectidee to 
embrace Pectidopsis, Pectidium, Pectis, and Lorentea. Of Pectis ang 
1 Less. Linnea, v. 184. 5 Atl. Jour. (1832) 145. 
2 1. c. vi. 706-721. 6 Prodr. v. 98-103. 
3 L. Syst. Nat. ed. 10, 1221. 7 Linnea, v. 134. 
* Obs. 307, 8 Less. 1. c. vi. 706. 
