1898-1902. No. 16.J FLOW. PLANTS AND FERNS OF N.-W. GREENLAND. 49 



Compositae. 

 Taraxacum hyparcticum, DAHLST. 



T. HyparcMcum, SIMMONS, Fl. Ellesm.; T. phymatocarpum, HANDEL- 

 MAZETTI, Mon. Tarax., ex p. 



Already during the expedition, I was in no doubt about the fact that 

 all the statements in literature about the Taraxacum-iorms of N. W. 

 Greenland and the adjacent countries, must be based entirely upon wrong 

 determinations ; the plants may be called T. officinale, T. palustre, T. 

 Dens Leonis, or any other name. The little I have seen of the collec- 

 tions made by others from the area here in question, has further con- 

 finned my opinion, and I can only regret the impossibility of examining 

 the collections from most of the american expeditions. When Dr. DAHL- 

 STEDT began his researches in arctic Taraxaca, now published in his 

 treatises Stud, arkt Tarax., and Tarax. ceratoph., he also found that 

 the above names were generally used for plants representing new 7 and 

 hitherto undescribed species. But it has been impossible for him also 

 to control the american authors ; and it must still be left an open 

 question what they meant, except in a few cases where specimens have 

 been accessible, or where at least a guess is possible. 



The species here in question has been examined by DAHLSTEDT in 

 my collection; but about its occurrence in other parts of the area than 

 that where I found it, only conjectures are possible. 



Occurrence. This species is as yet only known with certainty in a 

 few individuals from a single locality in N. W. Greenland, Etah in Foulke 

 Fjord (4268, 4269). DAHLSTEDT found them mixed in my Taraxacum 

 collection from that point which, for the most part, represented T. arcto- 

 genum DAHLST. It is, however, rather probable that the T. palustre 

 which HART (Bot. Br. Pol. Exp.) speaks of as a form of T. Dens Leonis, 

 occurring in Foulke Fjord, is the same. T. palustre is also mentioned 

 by DURAND (Enum. PI. Smith S.) as collected at Netlik by HAYES and 

 by KANE at Bedevilled Reach (Enum. PI.); but without seeing the spe- 

 cimens it is impossible to form any opinion about the plant that is meant. 



Taraxacum phymatocarpum, J. VAHL. 



T. phymatocarpum, SIMMONS, Fl. Ellesm.; HANDEL- MAZETTI, Mon. 

 Tarax., ex p. [T. officinale, NATHORST, N. W. Gronl., ex p.; T. off. 

 var. lividum, FERNALD in WETHERILL, List 1894]. 



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