274 PATAGONIAN EXPEDITIONS: BOTANY. 



Senecio fuegianus Phil. S. tricuspidatus H. & A. 



Senecio mscoides Reiche. S. viscoides Reiche. 



Senecio miser Hook, fil., var. tehuelches Speg. 



In South Fuegia ; Fuegian steppe, especially in the east coast ; Magel- 

 lan; South Patagonia in the steppe as well as in the deciduous beech 

 forests. 



A very variable plant as to its habit, size and denseness of the leaves, 

 and degrees of its viscosity; the peduncles are always comparatively 

 long (3-6 cm.) and i -headed, with rather large heads. The typical plant 

 is a rather common steppe plant, about 2 dm. high, growing principally 

 on or near the coasts. The leaves are entire or few-toothed, and a few mil- 

 limeters broad ; the same specimen sometimes having entire as well as 

 toothed leaves. The whole plant very viscous. 



Dusen writes: "Senecio viscoides Reiche from Magellan forms, in my 

 opinion, only a variety of S. longipes. The same form was collected by 

 myself at Sta. Cruz; it is much smaller in habit than the type, has 

 decumbent branches, ascending at the extremities ; the leaves were 

 toothed in the specimens collected by Reiche, and also in my specimens. 

 The plant is resiniferous, much as the type. Another form which is taller, 

 and more robust than the type, was collected by me in the interior of the 

 territory of Sta. Cruz, as well as near the forest line not far from Lake 

 Viedma. Its leaves were toothed, but narrower, and the heads somewhat 

 greater than in the type. This form is no less viscous than the typical 

 plant, and shows, in some respects, an intermediate position between the 

 type and the following form. 



" The fourth form belongs to the deciduous beech forests, and is as 

 common in their lower parts as in their heights ; it was found by me at 

 least up to 950 m. 



" The height of this robust form varies from about 4 to 7 dm. Its leaves 

 are somewhat broader and weaker than in the type, and entire or few- 

 toothed even in the same specimen. The heads are somewhat larger than 

 those of the type. At first sight it seems specifically distinct from S. 

 longipes, through its obtuse habit and the apparent absence of resiniferous 

 glands. A careful examination, however, shows that the glands are not 

 lacking, but they are comparatively few. No other specific difference of 

 character from S. longipes is visible. I therefore endorse Skottsberg's 

 doctrine that they are not specifically distinct." S. crithmoides H. & A. 

 is another synonym. 



