6 10 PAT AGONIAN EXPEDITIONS : BOTANY. 



8. EPILOBIUM MAGELLANICUM Ph. & Hauss. (E. tetragonum Har. non L.) 



Subligneous, with varying size of root, producing soboles which bear 

 subterranean gemmae as large as hazel-nuts. Stem short, 20 cm. long, 

 with elevated lines, branching from the base ; the branches all floriferous. 

 Leaves small, opposite, except the upper, united at base, ovate, hairy, 

 denticulate, 15 by 8 mni. Flowers small, erect. Sepals ovate-lanceolate. 

 Petals pink, slightly larger. Stigma clavate, i mm. long. Capsule erect, 

 short, 4 cm. long, thick. 



S. Patagon., Punta Arenas; by Rio Sta. Cruz; Fuegia, Ushuaia. 



9. E. PALUSTRE Linn. Marsh Willow-herb. 



Erect, slender, subsimple, 30 cm. Leaves mostly opposite, lance-oblong, 

 obtuse, 3-4 cm. long, suberect, veined. (Veins, stems and some leaves 

 generally maroon.) Flowers in upper axils, few, pink to white. Stigma 

 subentire. Fruiting peduncles slender, erect; capsules 4-5 cm. long, i 

 mm. thick. 



(Eurasia; Arctic and Mountains of Amer.); S. Patagon., head of Rio 

 Chico, by Hatcher, Feb. 9, 1897. 



10. E. TETRAGONUM Linn. 



Stem tetragonal, subglabrous, its basal branches horizontal. Leaves 

 lance-oblong, denticulate; the lowest opposite, sessile and basi-obtuse. 

 Stigma undivided. 



(Eurasia; Andes); Fuegia; Falklands. "Common at Magellan." (C. 

 Gay.) 



J. D. Hooker identifies this with the E. coloratum Muhl. of U. S. (fig. 

 in Britt. & Br., ii, p. 484). E. alpinum (Britt. & Br., /. c., p. 482) and E. 

 tetragonum, with many intermediate states, are in Tasmania. " E. al- 

 pinum of Chili cannot be distinguished from either the British or the Tas- 

 manian plant." 



Haussknecht gives E. adnatum Griseb. as the S. American representa- 

 tive of the Old-World E, tetragonum Linn., of the division with undi- 

 vided stigma. This section includes besides E. tetragonum and E. ad- 

 natum, E. brasiliense Hauss. of Brazil and Argent., E. puberulum Hook. 

 & Arn. of Chile, Chiloe and Valdivia, E. denticulatum Ruiz. & Pav. of 

 Argent., E. andicolum Hauss. of Argent., and E. australe. 



