58 PROCEEDINGS OF THE AMERICAN ACADEMY, 
was found only in the punctate leaves of the former. In the same work? 
Linnzus refers to P. ciliaris one of Plumier’s figures? which is hardly 
recognizable as the West Indian and Florida species, and, as De Candolle’ 
suggests, is more likely P. Carthusianorum. PP. minuta, described at the 
same time by Linnzus,* is an obscure thing unless it is the P. minuta 
of Willdenow’s Herbarium, referred by Lessing® to P. pygmea, or 
the P. minuta, Schreb.,®° which has been referred to Bellium minu- 
tum, L. The genus Seala was founded by Adanson’ in 1763 partly 
upon Plumier’s figure® which Linneus had referred. to his own P. 
ciliaris. 
In 1788 Swartz® described P. humifusa, a West Indian plant based 
upon one of Plumier’s descriptions and plates; and three years later, in 
1791, he described a P. ciliaris," which is obviously not P. ciliaris, L. 
and which has subsequently been named by Lessing? P. Swartztana. 
In the same work Swartz ® describes a P. punctata, not with the pappus 
a foliaceous crown as in Plumier’s plant (De Candolle refers Plumier’s 
plate to P. Swartziana), or merely of two sete as in Jacquin’s second 
description, but with the pappus of three swbulate sete ; and this charac 
ter, as well as the general description of the plant, seems to identify it 
with P. linifolia, L. 
During the remainder of the decade three species were published, only 
one of which proved a good Pectis. P. pinnata, Lam." (1792) has been 
identified with Schkuhria abrotinoides, as has also P. multifida, Orteg.”* 
(1797). Cavanille’s P. prostrata,”* published in 1797, from Mexico, is 4 
common species. 
The first extensive consideration of the genus in this century Was by 
i a 
1 Spec. ed. 2, 1240. 
2 Plum. 1. c. t. 151, f. 2. 
8]. c. 101. 
4 Spec. ed. 2, 1250. 
5 Linnea, vi. 713 in syn. 
6 mao in Steud. Nom. ed. 1, 103. 
7 Fam. i ; 
8 Plum. Pl. Amer. ed. Burm. t. 151, f. 2. 
9 Prodr. 114. 
0 Ja — Hypericifoliis, Plum. 1. c. 84, t. 95, f. 2. 
ll Swartz, Obs. 
12 Linnea, vi. art 
13 1. c. 308. 
14 Jour. Hist. Nat. Par. ii. 150, t. 31. 
15 Hort. Matr. Dec. 45. 
16 Cav. Ic. iv. 12, t. 324, 
