862 C. SKOTTSBERG 



base; bark green to straw-coloured. Branching irregular, from near the base; leaves 

 short-lived, thus more or less crowded toward the end of the branches, were the 

 internodes are shortened (fig. 23 b, 24). With ripe seeds in the beginning of 

 March. 



Seeds sown 23.3. iqi8 germinated after a month; a 2 months' old seedling is 

 seen in Fig. 23 c. A year later they had grown to miniature trees, and in March 

 1920 budding panicles appeared, but they soon faded and fell. In January 1922 one 

 plant flowered, and the central panicle gave ripe seeds (Fig. 24), whereupon the plant 

 died, and the seeds appear not to have germinated. Another series of plants was 

 raised from seeds sown 28.3. 19 19, but all were lost before coming into bloom. 



Urtica feruaiidcziana (Rich.) Ross. Both islands, very rare on Masatierra and 

 only reported from the forests on both sides on Portezuelo de Villagra, less uncom- 

 mon on Masafuera in some of the wooded valleys between 400 and 800 m and also 

 observed in the highland to about 1350 m. Johow calls this insular, non-stinging 

 nettle a shrub or subshrub, but it has the habit of a miniature tree with a max- 

 imum height of 1.7 m and a short main trunk as much as 3 cm thick, and I doubt 

 that it regenerates from the base. Bark long remaining green, cork developed on 

 older branches, which are woody throughout. PI. 72: 2. With flowers and small 

 axillary shoots in August, 1908 (Skottsb. j", PI. 6: 5); with flowers and fruit in 

 February 191 7. 



Tall shrubs (Mi— N). 



CJiusquea fer}ia7idezia)ia Phil., "Colihue". Gramineae. Only in the forests of Ma- 

 satierra, from the wet gullies back of Puerto F"rances to Puerto Ingles and Cerro Alto, 

 rare below 400 m (descending to 160 m on the bank of a stream in Villagra), not 

 uncommon between 500 and 800 m. The slender, spreading canes of the island 

 bamboo grow to a length of several m with a diameter of at least 3.5 cm, forming 

 light green cascades on the steep slopes (PI. 74:1). Neither in 1908 nor in 191 7 

 flowers or old panicles could be detected. As customary among the bamboos, 

 flowers are produced at long intervals; known from the type material only, 

 collected in November, 1864, until fresh material was obtained in 1935 (Skottsb. 



19- 365)- 



Berberis corynibosa Hook, et Arn., "Michay". Endemic on Masatierra, not 

 uncommon in the forests and brushwood from 200 to 600 m above sea-level and 

 ranging west to Quebrada Juanango, but never abundant and of slight physiog- 

 nomic importance. Habit of our common European barberry, the erect to slightly 

 curved long-shoots up to 2.5 m long and 1.5 — 4 cm thick (in one instance as much 

 as 15 cm). Young bark dull cinnamon brown, older grayish brown and furnished 

 with long, narrow, anastomosing ridges. Wood yellow, very hard and heavy. One 

 of the very few native ligneous plants with typical budscales. Johow says that 

 Berberis stands leafless during July and August. Specimens collected 23.8. 1908 

 were bursting into leaf and had young racemes; in the beginning of December 

 the flowering season approaches its close, and ripe berries were found toward the 

 end of the month. End of March many shrubs were losing the leaves of the older 

 dwarf-shoots, while the long-shoots developed during the summer showed no sign 



