KUJSGL. SV. VET. AKADEMIENS HANDUNGAR. BAND 50. N:0 3. 53 



Campanulaceae. 

 Pratia Gaud. 



88. P. repens Gaud. 



External face of coroUa inauve, internal white, side lobes and tips of lower 

 lobes påle blue, protuberances between them bright yellow. Filaments dark violet, 

 anthers lilac; stigmse whitish. 



In Bestäub. chilen. Campanul. und Goodeniac, p. 514, Reiche remarks tliat as 

 far as lie coiild see from dried material, fertilization maj^ take place already in tlie 

 staminal tube and before the flovver has opened. After my observations on living 

 specimens, this is not possible. The flowers are proterandrous; the two lower anthers 

 end in an elastic bristle (Pl. II, fig. 13). If an insect follows the furrow, marked 

 by the yellow protuberances, he comes into contact with these bristles, the staminal 

 tube opens and some pollen falls out. At this stage the stigma lobes are pressed 

 together (fig. 14 a); there are no papillse on the external surface, and I cannot see 

 that fertilization is possible. Låter, the style becomes enlarged, the collar (brush) 

 sweeps out the rest of the pollen; when fully exserted, the stigma lobes separate 

 and exposé their inner surfaces (fig. 14 b). The flowers, whicli contain honey, have 

 now reached their female stage; the bristles are now useless, as there is no pollen 

 left, and are hidden behind the lower stigma lobe. 



Moist places in the heath, on the banks of streams etc., growing in dense mats. 

 E. F., Port Louis! Stanley Harbour! Arrow Harbour! North Arm! W. F., Spring 

 Point! Port Philomel, Halfway Cove ! Saunders Island! — S. Patagonia, Fuegia, 

 Staten I. 



Compositse. 



Lageiiopliora Cass. 



85. L. nudicaulis (CoMM.) P. Dus. (Aster nudicaulis Comm., L. Commersonii 

 Cass., L. hirsuta Birger non Poepp. et Endl.) 



The flowers vary from deep crimson to pure white. 



Rocky and stony places, very scarce. E. F., Port Stanley! Port Louis! San 

 Carlos North! W. F., near Port Howard! — Juan Fernandez, Chile (Cord. Rancagua), 

 South Patagonia, Fuegia, Staten I., Tristan d'Acunha. 



Aster L. 



106. A. Vahlii (Gaud.) Hook. et i\RN. (Erigeron Vahlii Gaud.) 

 Ray-florets white, låter with tips påle reddish, disc-florets bright yellow. — 

 Damp soil in the heath and meadows, formerly abundant (Hooker) now more 



