24 CARL SKOTTSBERG, A BOTANICAL SURVEY OF THE FALKLAND ISLANDS. 



Codonorcliis Lindl. 



84. C. Lpssoiiii (d'Urv.) Lindl. (Epipactis Lessonii d'Urv., Calopogon, Brongn., 

 Pogonia tetrapliylla Poepp. et Endl.) 



This is, I should say, the most beautiful Falkland flower, At some occasions I 

 noted, that the flowers had löst their pollinia, and as the species bears fruit well, I con- 

 clude that it is visited by insects. It is possible, that the poUinia can fall out, but on account 

 of the position of the gynostemium, they do not easily hit the stigma. The labellum is 

 directed upwards, and there is only a narrow passage between it and the gynoste- 

 mium. The flowers are scented, but do not offer any honey; it is however possible 

 that the remarkable, pedicelled glands on the labellum attract insects. I imagine, 

 that pollination is effected by means of beetles, which, if they press themselves 

 between the labellum and the gynostemium, cannot fail to touch the disc of the 

 pollinium. However, the glands seem to be quite unpalatable, for even in flowers 

 that had löst their pollen-masses, they were intact. Not uncommon, but always 

 local, in the meadow and heath. E. F,, d'Urville, Hooker etc. ; Port Stanley 

 (Miss Kate Hudson), Rabbit Cove! W. F., Port Howard! Hornby Mountainsl 

 Shag Harbour! Westpoint Island (Miss Alice Felton), Saunders Island! — S. Chile 

 — Fuegia, Staten I. 



Santalace89. 

 Naiiodea G^rtn. 



21. N. inuscosa G^RTN. 



Flowers described and figured in Feuerl. Bliiten, p. 50. The fruit of ten remains 

 on the plant until the following summer. In Fl. ant. Suppl. p. 549, Hooker supposes 

 that this species is parasitical. I have been able to prove that this is the case, as 

 I have followed the roots until I reached the höst plant. It is a parasite on Eyn- 

 petru7n ruhrum,, Pernettya pumila and also on other individuals of Nmiodea, further 

 I found the haustoria on what I believe to be old stems of Bolax gummijera. — 



Rather common in the Empetrum.-\\eBAj\\. E. F., Port Louis! Port Stanley! 

 Sparrow Cove! Port Harriet! Arrow Harbour! etc. W. F., also on the top of 

 Mount Adam, 700 m.! — Fuegia, Staten I. 



Polygonaceae. 

 Rinn ex L. 



R. iiiagellaiiicus GriSEB. 



E. F., d'Urville, Hooker acc. to Grisebach in sched. pl. exsicc. Hohenacker 

 1175! — Patagonia, Fuegia. 



[R. acetosella L., undoubtedly originally introduced, has been spreading rapidly, 

 especially round the settlements. Where the peat has been laid bare by cutting, it 

 appears in great abundance.] 



