FLORA OF THE GALAPAGOS ISLANDS. 209 



dioribus apice obtusis basi lougiuscule angustatis sessilibus 3-4.5 cm. 

 longis 1.5-2 cm. latis ; capitulis sessilibus ; involucri squamis exterioribus 

 4-6 oblongis obtusis conspicue ciliatis 4 ram. longis ; fructibus triangu- 

 laribus 6 mm. longis compressis pallidis minute granulatis et spinis brevibus 

 conicis baud vel paulo uncinatis armatis ; floribus disci circa 7 ; corollis 

 pallidis, tubo gracile faucibus subnullis limbo ampliato. — Charles Isl. : 

 May, 1899, Snodgrass & Heller no. 446 (bb. Gr.). Endemic. Nearly- 

 related to A. hispidum, DC, but differing considerably in the fruit, as will 

 be seen from Plate 1, figures 3 and 4, where the fruits of both species 

 are contrasted. 



Ageratum, L. 



A. latifolium, Hemsl. Biol. Cent.-Am. Bot. ii. 82 (1881), not Cav. 

 (Coelesti?ia latifolia, Beuth. in Oerst. Vidensk. Meddel. 1852, p. 71; 

 Anderss. (1), 175, & (2), 67; Camel (1), 623. A. conyzoides, Hook. f. 

 (3), 207; Anderss. (1), 175, & (2), 67; Rob. & Greenm. (1), 146; not 

 L. — Charles Isl. : Darwin ; Andersson ; Baar ; Snodgrass & Heller, 

 no. 423 (hb. Gr.). Chatham Isl.: C/iierchia, ace. to Caruel, 1. c. 

 Further distrib. Costa Rica. 



Aplopappus, Cass. 



A. lanatus, Hook. f. (3), 215; Anderss. (1), 177, & (2), 68 (Haplo- 

 pappus). — Galapagos Ids. : Du Petit- Thouars. Endemic. 



Baccharis, L. 



B. pilularis, DC. Prodr. v. 407 (1836); Hook. f. (4), 261 ; Anderss. 

 (1), 178, & (2), 69; Gray, Syn. Fl. i. pt. 2, 222. — Charles Isl. : 

 Edmonston, ace. to Hook, f., 1. c. Further distrib. coastal region of 

 California and Oregon. I cannot avoid a suspicion that the Galapageian 

 plant (of which I have seen no specimen) will prove to be not the Cali- 

 foruian species but one of several habitally similar plants of trop. 

 S. Am. 



B. Pingraea, DC, var. angustissima, DC Prodr. v. 420 (1836) ; 

 Rob. & Greenm. (1), 146. — Albemarle Isl.: eastern part, Cowley 

 Bay, Baur, no. 124 (hb. Gr.) ; mountain east of Tagus Cove, alt. 960 m., 

 Snodgrass & Heller, no. 242 (hb. .Gr). Identification doubtful. Further 

 distrib. coast of Chili. 



B. Steetzii, Anderss. (1), 177, & (2), 68. — Charles Isl.: in dry 

 places in the middle of the island, Andersson (hb. Gr.). 

 vol. xxxviii. — 14 



