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CURRENT LITERTURE. 



Reprinted from Bulletin of the N. Y. Bot. Gardens, No. 6, May 27, igor. (Concluded.) 

 Hyptiiun cupressiforuie brevisetum Schimp. Lake Marsh, on rock. 

 The sterile specimens referred here possibly belong elsewhere, yet they come 

 very close to this variety, differing jprincipally from the species in the 

 leaves being straighter, rather shorter and with somewhat shorter leaf cells 

 (758). 



Hypnumpolare Lindb. Lake Lindeman. Growing along low wet shore. 

 This species is distinguished from any of our others by the ovate-oblong 

 leaves, with stout nerve, very convex on the back, vanishing just below the 

 apex and becoming as wide or wider above the middle than at the middle. 

 Alar cells scarcely enlarged or forming a distinct cluster. The plant has 

 been previously collected in several localies in Europe, and also in Green- 

 land (773). 



Hypnu7n sarmentosum fontinaloides Berggrn. Bonanza Creek, near 

 mouth. On rocks in the bottom of a small stream. This variety with long, 

 slender stems and large leaves, often all green or partly green and partly 

 purple. These specimens have the cells walls less thickened and pitted than 

 in the species (777). 



Hypniim turgescens uliginosiiin Lindb. In swamps with the preceding 

 (B turgescens (Jensen) Schimp.). This variety has elongated stems and 

 distant more or less spreading leaves (782). 



Hypiiiim badium Hartmann. On margin 'of pond just below snow 

 banks about 1000 feet above Lake Lindeman, also at Dawson on wet, shady 

 bank. From the remarks in Lesquereux & James' Manual that " It is con- 

 sidered by Mueller to be a form of H. 7^evolvejis one would suppose the 

 leaves to be somewhat similar to that species, but in fact they are very dis- 

 tinct. The median leaf -cells are only about Yz as long (,040 to .060 mm.), the 

 cell walls are thicker except at the points where the rounded ends overlap, 

 where they become very thin and the leaf is differently shaped. In badiuui 

 the widest part of the leaf is near the middle and gradually tapers to a base 

 only about f as wide. Above the leaf tapers rather abruptly to a sharp 

 point. In revolvens the leaf base is wider, the leaf above tapers gradually 

 to a long, slender point and the basal cells are much less differentiated. In 

 badium there are usually one or two rows of well-defined, enlarged, oblong 

 cells at base with occasionally an almost inflated cluster in the angles. It is 

 a plant of northern distribution, having been previously collected in Nor- 

 way, Sweden, Greenland and Labrador (795). 



Hypnum scorpioides gracilesceiis Sanio. In dried-up swamp a few 

 miles below White-horse Rapids, covering extensive areas with a mat up to 

 18 cm. thick. The stems are slender, with short, distant branches and 

 leaves distantly placed (793). 



