120 MoitTKN 1'. l'oltSll.l). 



•'Del' kN'iiif Hosiiiariii ; wiiclist an drv Siidseite drr litM'go, wo es 

 trockcn isL und iiiinml koiin' andore l^ilanzeii iiiiIit sicli aiiT. I''an<?t 

 Mitte .Iimy an zii treihen und hlidil \nn Mitte Jidy his Ende Anifnst." 



Abont L. Idlifoliuni Alt. (L. gruenlandiciini Hetz.i lir says: 



"Der ^rosse Hosmarin. Hliiht Mitte August." 



In tlie discussion ol Ihe two forms Meykh ment ions tlic hroad- 

 leaved varieties of L. pnltistre occurring in Europe (the var. dilatatunt 

 of Wahlenbkrg) "in eadem radice haud raro conjuneta". He doubts 

 the constanoy of the length and th(> nnnd)er of the stamens of latifoliuni, 

 hul nevertheless he considers this planl a valid species, %vithout trans- 

 itions to (IccuDibens, anri besides the difTerences given by Herzberg, 

 Meyer, adds: 



L. latijoliiim L. paluslre deciunbens 



Stylus: leviter tlexus omnino rcetus 



piincta aumnitrnfia in 



bracteis: copiosissima • rarissima 



ucinmae bracli'dnnii: obtusissimae et fere niulto tenuiores ma- 



semiglobosae gisque attenuatae 



^ 



During his 8 years of indefatigable investigations of the llora of 

 Greenland Jens Vahl made clear the main points concerning the Green- 

 land Lediiin forms and theii distribution. In his labels he determined 

 them respectively 1) L. groenlandicum and 2) L. palustre |3 decumbens. 

 As to tiie occurring of the European form he demonstrates his doubt 

 by labelling the piants ""L. palustre L. ?" "ad a accedens", or the like. 



In his "'r.fuisoectus Florae rirnonlandieai^" ISSO .loii. Lange enu- 

 merates : 



L. paluslre \i 



u. rulgare. Ercctuni, parnni raniosuni, jol.iis lanccolalo-lincaribus. 

 ^. deciunbens Ait. Trunco hiunili, subdepresso, saepius crebre 

 raniosi), foliis angusle iinearibus, genunis florigeris oroideis. 



L. groenlandicum Ged. Folia elliptica-ovalia, basi subcordata, 

 pagina superiore dense rugoso-areolata^ genunae florigerae globosae. Flores 

 saepe pentandri (teste Hooker), 



Lange states a to be rare in (ireerdand. Furthrr lir doubts the 

 specitic rank ol L. groenlandicum. having seen sperimens tliat accor- 

 ding to the form of tlic leaves inight as well hr dctci nuned as belong- 

 ing to one or another of I lir species. Previous to llie statement of 

 Lange, Hook ih lia<l stated the same opinion in his "Flora Boreali- 

 Amerieana" 1840. in which 11. p. 44 for llic same reasons he reduced 

 latifnliuni to a variety of palustre. And when Rosenvinge in 1892 



