FLORA OF THE GALAPAGOS ISLANDS. 191 



(hb. U. S. Nat. Mus.) ; Macrae; Iguana Cove, Snodgrass & Heller, no. 

 74 (hb. Gr.) ; mountain north of Elizabeth Bay, Snodgrass & Heller, 

 no. 294 (hb. Gr.) ; also on lava fields near beach, Elizabeth Bay, Snod- 

 grass & Heller, no. 940 (hb. Gr.) ; Tagus Cove, Snodgrass & Heller, 

 uos. 159 (hb. Gr.), 925 (hb. Gr.). Barrington Isl. : Baur, no. 231 

 (hb. Gr.) ; Snodgrass & Heller, no. 473 (hb. Gr.). Bindloe Isl. : 

 Baur, no. 232 (hb. Gr.) ; Snodgrass & Heller, no. 787 (hb. Gr.). 

 Charles Isl.: Andersson ; A. Agassiz ; Baur, no. 228 (hb. Gr.) ; 

 Snodgrass & Heller, no. 419 (hb. Gr.). Chatham Isl.: Darwin; 

 Andersson (hb. Gr.) ; southwest end, lower region, Baur, no. 208 

 (hb. Gr.) ; Snodgrass & Heller, no. 524 (hb. Gr.). Duncan Isl. : 

 A. Agassiz (hb. Gr.) ; Baur, no. 230 (hb. Gr.) ; very abundant on hills, 

 Snodgrass & Heller, no. 708 (hb. Gr.). Gardner Isl.: Snodgrass 

 & Heller, no. 642 (hb. Gr.). Hood Isl.: Baur, no. 229 (lib. Gr.). 

 Indefatigable Isl.: Andersson. James Isl.: Andersson; James 

 Bay, 2 to 3 m. high, not common, Snodgrass & Heller, no. 365 

 (hb. Gr.). Jervis Isl.: Baur, no. 233 (hb. Gr.). Seymour Isl.: 

 north, Snodgrass & Heller, no. 569 (hb. Gr.) ; south, Snodgrass & 

 Heller, no. 604 (hb. Gr.). Tower Isl. : Snodgrass & Heller, no. 793 

 (hb. Gr.). Further distrib. Ecuador, Peru, Bolivia. To our present 

 knowledge this is the most widely distributed plant on the Archipelago, 

 occurring as it does upon no less than fourteen islands. It is, however, 

 remarkably constant in its characters. 



C. revoluta, Hook. f. (3), 199. Varronia revoluta, Anderss. (1), 

 204, & (2), 84. Lithocardium revolutum, O. Kuntze, Rev. Gen. ii. 977 

 (1891). — Galapagos Ids.: Habel. Charles Isl.: Darrein. 

 Endemic. 



Var. nigricans, Hook. f. (3), 199. Varronia revoluta, var. nigricans, 

 Anderss. (1), 204, & (2), 84. — Albemarle Isl.: Macrae. Endemic. 



C. Scouleri, Hook. f. (3), 200; Rob. & Greenm. (1), 147. Var- 

 ronia Scouleri, Anderss. (1), 204, & (2), 83. Lithocardium Srouleri, 

 O. Kuntze, Rev. Gen. ii. 977 (1891). — Chatham Isl.: Andersson; 

 southwest end, middle region, Baur, no. 216 (hb. Gr.). James Isl. : 

 Scolder. Endemic. 



C. nov. sp. ? O. dasycephala, Anderss. (1), 204, & (2), 84, not HRK. 

 Varronia dasycephala, Hook. f. (4), 261, not Desv. — Charles Isl.: 

 Edmonston (hb. Gr.). Certainly different from any other species on 

 the Islands, and clearly distinguished from O. dasycephala by the simple 

 widely spreading tawny setae which cover the stem. Unfortunately the 

 material is too poor for description. Endemic. 



