No. 80. 



COLPODIUM PENDULINUM (Liust.) (^riseb. in Ltnleb. FI. lioss. iv. .iSO 

 (1853); Ohjceria pcmhilina Liest. in "\yalilciih. Fl. Sticc. ii. lOS.s (ISL'l-L'fi). 



Plant perouniiil, .somewhat tiilted, from a cree|)iiifj rootstock. 



Viilmx erect or slightly geniciihite, clothed throughout with the uuinerous over- 

 la]ii)iug sheaths. 



Ijcuvch of cului to 10, with close, smooth, stiiate, usually overlai)i>iii};' sheatiis; 

 Hat, smooth, striate, rather tliick and rij^id, slightly spreading blades 1 .i to li Hues wide, 

 4 to 8 inches long; ligule niembranaceous, truncate, \h lines long or less. 



/»_//r»Tsc«Jicc a pyramidal ])anicl(^ 4 to (5 inches long; rays mostly iii jiairs, often 

 divided so as to ai)pear like fours, at the G to 8 nodes of the slender, smooth, common 

 axis, 8i)reading or usually detlexed at maturity, smooth, flexuous, divided beyond the 

 midillc and bearing few si)ikelets often pendulous on the shoit pedicels. 



iSpikcletn oblong, loosely 5- to 8 -dowered, abcmt o lines long; first empty glume oli- 

 lanceolate, barely acute, smooth, 1-nerved, I4 lines long; second empty glume broadly 

 rhombic-ovate, smooth, obscurely .S nerved, li lines long; floral glume obo\ate, eiose 

 at the thin, membranaceous apex, smooth except a few hairs at the base, ol)scnrely 3- 

 nerved, I to IJ lines long and about as wide; palet obovate, erose, 2-lobed above, 

 smooth on the 15 rather ol)scur(i nerves, sliglitly hairy at the base, less than I line long; 

 grain linear, reihlish brown, 1 line long; lodicules ])iesenf, rather small and obscui'e; 

 iuternodes of the zigzag rachis smooth, about .J line long. 



I'l.Ai'K LXXXVI; ff, spikelet enlarged ; t, floral glume; <-, palet opened; rf, pistil 

 and lodicides. 



Arctic America, Siberia, and Lapland. 



