120 Monten P. Ponrsitp. 
“Der kleine Rosmarin; wachst an der Siidseite der Berge, wo es 
trocken ist, und nimmt keine andere Pflanzen unter sich auf. Fangt 
Mitte Juny an zu treiben und bliht von Mitte July bis Ende August.” 
About L. latifolium Ait. (L. groenlandicum Retz.) he says: 
“Der grosse Rosmarin. Bliiht Mitte August.” 
In the discussion of the two forms Meyer mentions the broad- 
leaved varieties of L. palustre occurring in Europe (the var. dilatatum 
of WAHLENBERG) “In eadem radice haud raro conjuncta”’. He doubts 
the constancy of the length and the number of the stamens of latifolium, 
but nevertheless he considers this plant a valid species, without trans- 
itions to decumbens, and besides the differences given by HeErzperc, 
Meyer, adds: 
L. latifolium L. palustre decumbens 
stylus: leviter flexus omnino rectus 
puncta auronitentia in 
bracteis: coplosissima rarissima 
gemmae bractearum: obtusissimae et fere multo tenuiores ma- 
semiglobosae gisque attenuatae 
During his 8 years of indefatigable investigations of the flora of 
Greenland Jens Vani made clear the main points concerning the Green- 
land Ledum forms and then distribution. In his labels he determined 
them respectively 1) L. groenlandicum and 2) L. palustre 3 decumbens. 
As to the occurring of the European form he demonstrates his doubt 
by labelling the plants ‘“‘Z. palustre L.?” “ad a accedens’’, or the like. 
In his “Conspectus Florae Groenlandicae” 1880 Jou. LANGE enu- 
merates : 
L. palustre 1, 
a. vulgare. Erectum, parum ramosum, foliis lanceolato-lineartbus. 
p. decumbens Air. Trunco humilt, subdepresso, saepius crebre 
ramoso, foliis anguste linearibus, gemmis florigeris ovoideis. 
L. groenlandicum Orv. Folia elliptica-ovalia, bast subcordata, 
pagina superiore dense rugoso-areolata, gemmae florigerae globosae. Flores 
saepe pentandri (teste HooKEr). 
LANGE states a to be rare in Greenland. Further he doubts the 
specific rank of L. groenlandicum, having seen specimens that accor- 
ding to the form of the leaves might as well be determined as belong- 
ing to one or another of the species. Previous to the statement of 
Lance, Hooker had stated the same opinion in his “Flora Boreali- 
Americana”? 1840. in which II. p. 44 for the same reasons he reduced 
latifolium to a variety of palustre. And when RosENVINGE in 1892 
