2 1 8 CARL SKOTTSBERG 



40. Anemone decapetala L. — Johow 1. c. 113. — Masatierra : Reed 

 ace. to JoHOW. Never found again. — Widespread in Chile. 



41. Ranunculus muricatus L, — Johow 1. c. 113. — Masatierra: 

 DOUGLAS etc.; V. Colonial (no. 117); B. Villagra. — Also in Chile. 



42. Lardizabala biternata Ruiz et Pav. — Johow 1. c. 115. — Masa- 

 tierra: Plazoleta del Yunque (JOHOW, SKOTTSB. no. 482 $). — Occurs in 

 great quantity on a very small area, forming an entangled mass resting on 

 the trees and shrubs like a heavy net and almost killing them. It was first 

 recorded by Johow who says it grows in the forest at the foot of the Yunque, 

 especially in the Plazoleta. As far as I have been able to ascertain, the latter 

 place is the only locality known to the inhabitants, and I think it is limited 

 to this spot. At first it appeared strange that a plant so admirably adopted 

 to the mild climate of Masatierra should not have spread through the forests, 

 but the explanation was soon found. The islanders are very familiar with the 

 edible fruit of this on the continent, and they told me that the plant never 

 produces any fruit in Juan Fernandez. In the end of March I found the flowers: 

 all were female and not a single male one could be discovered; Lardizabala 

 is dioecious, and there are only female plants in the island. This makes 

 JOHOW's theory that it has been introduced quite probable, if on purpose or 

 not; the former possibility has to be considered, as A. VON RODT planted 

 trees (Eucalypts etc.) on the Plazoleta. In any case, the Lardizabala in 

 Masatierra comes from few seeds, all female (or perhaps from a single one?). 

 I hope that the male plant will never be introduced. — Chile. 



43. Sisymbrium officinale (L.) Scop. — JOHOW 1. c. no. — Masa- 

 tierra: B. Cumberland (JOHOW, SKOTTSB. no. 203). — Common in Chile. 



44. Brassica nigra (L.) Koch. — Johow 1. c. 109. — Masatierra: 

 B. Cumberland, »la maleza mas comun» (Johow). Seems to have disap- 

 peared. — Chile. 



45. Brassica napus L. — Johow 1. c. no. ■ — Masatierra: El Rabanal 

 (Johow); B. del Padre (Johow), common on the Puente (BACKSTROM no. 1210); 

 Villagra, Q. de la Chozas, wet rocks in the forest (no. 249) and a similar place 

 on the slope of Co Chumacera (no. 249 b). — Santa Clara (Johow). — 

 *Masafuera: Loberia Vieja, abundant and of enormous size. 



*46. Brassica rapa L. — Masatierra: B. del Padre (no. 121 1). 



47. Raphanus sativus L. — Johow 1. c. no. — Masatierra: Has 

 almost disappeared since the visit of JOHOW; seen by us only in B. del Padre. — 

 *Masafuera: Q. de las Casas, in the colony; Loberia Vieja. 



*48. Nasturtium aquaticum (L.) Wg. — Masatierra: V. Colonial, 

 abundant in the streams (no. 156). Introduced on purpose; common in Chile. 



*49. Matthiola incana (L.) R. Br. — Masatierra: Intentionally intro- 

 duced; has run wild round B. del Padre, going very strong in the sand on the 



