igo2] Holm On the Genus Arctophila, Rupr. 83 



These new species are: 



Arctophila gracilis (Fig-s. 3 and 4.) 



Rhizome wanting" : culm glaucous, slender, glabrous, the in- 

 ternodes longer than the leaf-sheaths : leaves glaucous, glabrous, 

 the sheaths split to about the middle : ligule lacerate ; leaf-blade 

 flat, very narrow, much longer than the internode, erect : panicle 

 relatively long and narrow, the almost capillary rays semiverticil- 

 late : the basal and several of the upper ones deflexed, giving the 

 plant somewhat the aspect of Poa sylvestris Gr. : spikelets glau- 

 cous, quite numerous near the end of the branches with capillary 

 pedicels, two to four-flowered : empty glumes very unequal, obso- 

 letely three-nerved, acute : flowering glume relatively narrow, the 

 apex obtuse and erose, three-nerved, longer than the bidentate, 

 glabrous palea: rhacheola hairy at the joints- stamens and pistil 

 as in A. fulva. 



Very characteristic by its narrow panicle, the narrow leaves 

 and glaucous hue. 



Collected by Dr. R. Bell in bogs and swamps north of Lake 

 Superior; in flower July 1883. 



Arctophila brizoides. (tig. 8.) 



Rhizome robust, stoloniferous: culm glabrous, about 60 cm. 

 in height, the upper internodes longer than the leaf-sheaths 

 the basal shorter: leaves glabrous, the sheaths split to about the 

 middle; ligfule large, almost entire, leaf-blade flat, quite broad, 

 much longer than the internode, erect: panicle nodding, very short, 

 but broad, the rays semiverticillate, two or three together, droop 

 ing, very slender: spikelets pale green with a slight tinge of 

 purple, mostly four-flowered, quite numerous in proportion to the 

 small panicle, broadly ovate, on very slender pedicels: empty 

 glumes subequal, the lower one-nerved, the upper three-nerved: 

 flowering glume rather broad, obtuse, erose, nerveless, longer 

 than the palea: rhacheola, stamens and pistil as above. 



Recorded as A. fulva, but very distinct from this and the 

 others by the short and broad inflorescence with its drooping, 

 broadly ovate spikelets, rendering the plant the aspect of a Briza. 



Collected by James M. Macoun on St. Paul Island, Behring 

 sea; in flower August 1892. 



