92 BOTANICAL GAZETTE. [April, 



pale, cernuous or suberect, oblong or subcylindrical, arcuate, 

 slightly plicate when old, with a small strumose neck. Lid 

 conic, with a long subulate beak. Annulus distinct, teeth 

 purple, clett to the middle or below into 2-3 quite free or often 

 more or less coherent legs. 



D. ■pallidum BS. Bryol. Eur. mem., non C. Midler Syn. I, 

 359, nee plurim. auct. I). spurium var. condensatum Lesq. 

 et James, Manual 76, non I), condensatum Hedw. D. aren- 

 arium Ren. et Card. mss. in litt. et sched. 



" In arenosis siccis meridionalibus." (Sull. and Lesq. 

 Musci bor. Amer. exsicc.) " In dry sandy places on hills, 

 especially in southern districts." (Lesq. and James, Man- 

 ual, 76.) We have this plant from Florida {Fitzgerald, 

 Sawyer), Louisiana (Langlois) and Carolina {H. A. Green). 

 Probably in all the southern states. 



Since the establishment of our species in the Revue Bryo- 

 logique, we ascertained from the examination of two authentic 

 specimens of D. -pallidum BS., in the herbarium of the Bo- 

 tanical Garden of Brussels, that this plant, only mentioned 

 by the authors of the Bryologia Europcea as a species closely 

 resembling in habit the D. Muhlenoeckii BS., is identical 

 with the D. spurium var. condensatum of the American bryo- 

 logists, from which we have made our D. sabuletorum. 

 Therefore, the name of D. pallidum BS. should be retained 

 by right of priority. But, as Miiller, in his Synopsis, de- 

 cribed erroneously under the name of D. pallidum BS. a 

 form of D. scoparium, and as it is generallv this form which 

 is known in the current literature as D. pallidum, it seems to 

 us to be most convenient to adopt a name about which there 



can be no mistake, and therefore we retain our name of D. 

 sabuletorum. 



This species is intermediate between the D. spurium 

 Hedw. and the D. Muhlenbcckii BS. and D. brevifolium 

 Lindb., differing from the first in its much narrower and not 

 undulate leaves, and from the last two species in the form of 



its perichatial bracts, and the thinner walls of the cells of its 

 leaves. 



Dicranum scoparium Hedw. var. sulcatum. (Florule de 

 File Miquelon, 44.)— Differs from the tvpical form in the fol- 

 lowing characters : tutts yellowish ; stems more slender ; 

 leaves often flexuous, erecto-patent or subsecund, narrower 

 and more narrowly subulate, more sharply serrate above ; 

 cells of the areolation habitually destitute of chlorophvll,les> 



