FLORA OF THE GALAPAGOS ISLANDS. 215 



P. linifolia, L. Syst. Nat. ed. 10, 1221 (1760) ; Fernald, Proc. Am. 

 Acad, xxxiii. 85. P. punctata, Jacq. Euum. PI. Carib. 28 (1762), & 

 Stirp. Am. 216, t. 128; Gray, Syn. Fl. i. pt. 2, 362. Verbesina linifolia, 

 L. Syst. Nat. ed. 10, 1226 (1760). Pectidiam punctatum, Less. Linnaea, 

 vi. 707 (1831); DC. Prodr. v. 98; Auderss. (1), 172, & (2), 65. P. 

 subciliaris, Anderss. (1), 174, & (2), 66. — Chatham Isl. : Andersson. 

 Indefatigable Isl.: Andersson. Seymour Isl. : south, Snodgrass & 

 Heller, no. 591 (hb. Gr.). Further distrib. Mex., W. Ind., northern 

 S. Am. Several forms are distinguished by Andersson. 



P. subsquarrosa, Sch. Bip. in Seem. Bot. Herald, 309 (1852-1857). 

 Lorentia subsquarrosa, Hook. f. (3), 206. — Galapagos Ids. : Habel. 

 Chatham Isl. : Darwin. Endemic. 



P. tenuifolia, Sch. Bip. in Seem. Bot. Herald, 309 (1852-1857) ; 

 Rob. & Greenm. (1), 147. P. gracilis, Rob. & Greenm. (1), 147, as 

 to pi. Chatham. Lorentia tenuifolia, DC. Prodr. v. 103 (1836) ; Hook, 

 f. (3), 206; Anderss. (1), 174, & (2), 66. L. subsquarrosa, Anderss. 

 (1), 175, & (2), 67, as to pi. Albemarle. — Albemarle Isl.: Macrae 

 (type) ; Andersson ; Black Bight, Snodgrass & Heller, no. 256 (hb. Gr.) ; 

 eastern portion, Cowley Bay, Baur, no. 116^ (hb. Gr.) ; Elizabeth Bay, 

 Snodgrass & Heller, no. 274 (hb. Gr.) ; southern part, Baur, no. 116 

 (hb. Gr.) ; Tagus Cove, Snodgrass & Heller, no. 148 (hb. Gr.). Charles 

 Isl. : Andersson (hb. Gr.), labelled in Audersson's hand but not re- 

 corded in his published papers; Snodgrass & Heller, no. 437 (hb. Gr.). 

 Chatham Isl.: Andersson (hb. Gr.) ; northern part, Baur, no. 112 

 (hb. Gr.), leaves minutely pubescent ; Snodgrass & Heller, no. 537 

 (hb. Gr.). Indefatigable Isl. : northern part, Snodgrass & Heller, 

 no. 665 (hb. Gr.), leaves minutely pubescent, involucral bracts acutish. 

 Seymour Isl.: north, Snodgrass & Heller, no. 573 (hb. Gr.). Further 

 distrib. shores of Peru ? P. Barchellii, Bak. in Mart. Fl. Bras. vi. pt. 3, 

 287 (1884), is habitally similar, but differs in pappus. 



Porophyllum, Vaill. 



P. ellipticum, Cass. Diet, xliii. 56 (1826) ; Anderss. (1), 189, & 

 (2), 75 ; Rose (1), 137; Rob. & Greenm. (1), 147. P. ruderale, Cass. 

 1. c. Oacalia Porophyllum, L. Sp. 834 (1753) ; Cav. Ic. iii. 11, t. 222. 

 — Galapagos Ids. : Habel. Ablngdon Isl.: Snodgrass & Heller, no. 

 848 (hb. Gr.). Albemarle Isl. : Tagus Cove Mountain, Snodgrass & 

 Heller, no. 224 (lib. Gr). Charles Isl.: Andersson; Baur; Snod- 

 grass & Heller, no. 430 (hb. Gr.). Chatham Isl. : Andersson (hb. Gr.); 



