REPORT ON THE BOTANY OF JUAN FERNANDEZ AND MASAFUEKA. 5 



gum-resin yielded by a small tree which he took to be a Senecio. This resin exudes from 

 the branches and trunk, and under the influence of the air it solidifies and becomes 

 brittle ; and when thrown into fire it exhales an odour like that of incense. Two kinds were 

 distinguished, called "Resina macho" and "Resina hembra" [literally male and female resin 

 — Robinsonia thurifera and Robinsonia gayana respectively]. The product of the Macho 

 was called " Resina," and that of the Hembra " Incensa." Bertero was of the opinion that 

 there might be two species confounded, for the leaves of the latter are narrower, the disk- 

 flowers are yellow, and the ray-flowers deep red, and the heads in cymes, while in the former 

 the flower heads are corymbose and wholly yellow. Another small tree of the same genus, 

 called " Resinilla," is a new species [Robinsonia gracilis] ; this affords no resin. A rather 

 tall tree of the Eupatoriacese seemed to him to be totally unknown [Rhetinodendron ber- 

 teroi\\ it also furnished a gum-resin having the odour of incense. Myrtus ugni of Molina 

 [Myrtus selMrkti] was found on the high mountains. Hippotis triflora [Coprosma], a 

 tree of medium size, was very common ; and the tree called Peralillo [Psychotria }>p'i- 

 folia] belongs to the same family. It has a trunk four times larger than that of the 

 Hippotis. What was called " Manzano " in the island is a species of tree-nettle [Bcehmeria 

 excelsct] growing from ten to twenty feet high. He also found a Plantago near Plantago 

 princeps [a Sandwich Island species], but different. The Arrayan macho or espiuillo 

 [Rhophithamnus longijlorus] is a tree of medium size bearing a fleshy fruit. The 

 Guyacan \_Sophora tetraptera] differs from the Mayu of Chili in the shape of its leaves ; 

 besides, its trunk is of considerable size, while the latter is shrubby. The name spnrtioiihs 

 was given to an arboreous species of Colletia having small and few leaves and white 

 flowers tinged with rose. Lobelia tupa was very common ; its root is perennial, but the 

 stems are renewed yearly after producing very large flowers of a dazzling red. Another 

 herbaceous species [Lobelia anceps], always found growing in clefts of rocks near the sea, 

 was in his opinion new. Malva umbellata? and a shrubby Atriplex? which he did not 

 see in flower, were only found in Goat Island. A species of Tillandsia or of a closely 

 allied genus was met with in the highest mountains, and a Bromelia near Bromrlnr 

 discolor was very common on dry exposed rocks, and Azara "serrata " was frequent in 

 woods. Lessonia [Eryngium bupleuroides~\, a genus of Umbelliferse near Astrantia or 

 Sanicula, was a tree eio-ht to ten feet hip;h. A Berberis near Berberis glauca was known 

 by the name of Michoy, and furnished a very pretty yellow dye. The Arunda quila, 

 Molina? [CJu(sqiceafernandeziana]was rather common ; and the stem of Gunnera scabra 

 [Gunnera glabra and Gunnera peltatd] was found as much as ten feet high. The foliage, 

 says Bertero, who confounded two species, is very variable, sometimes peltate, sometimes 

 glabrous, smooth, and even shining. It was called " Panque," and abounded on the banks 

 of streams and in mountain valleys. Arbutus rigida [Pernettya], known by the name of 



1 Malva umbellata (Sphaeralcea umbellata) is a very showy Mexican plant, which does not grow in South 

 America ; and there are no Malvaceae from Juan Fernandez in any of the collections seen. 



2 This is not in the Kew set of Bertero's plants. 



