13 



Tribe XL Festucece. 



Spikelets two- to many-flowered, usually hermaphrodite, pedicel, 

 late in racemes or panicles, the latter sometimes dense and spike- 

 like; flowering glumes usually longer than the empty ones, 

 awnless or with one to several straight (rarely bent) awns which 

 are either terminal or borne just below the apex. 



This is the largest tribe in the order, numbering 

 seventy-six genera and about seven hundred and 

 twenty -five species. It contains the most important 

 meadow grasses of the temperate regions as well as the 

 more prevalent grasses of the higher mountains within 

 the Tropics. The genus Poa, which includes Kentucky 

 blue-grass, Texas blue-grass, etc., numbers one hundred 

 species, and an equal number of species are included in 

 the genus Eragrostis. The Fescues number eighty 

 species, and the tribe takes its name from this genus 

 Festuca. Orchard grass, Dactylis glomerata, is a well- 

 known example of this tribe. 



Pappophorum Schreb.* 

 Cottea Kunth. * 

 Cathestecum Presl.* 

 Scleropogon Philippi.* 

 Monanthochloe Engelm.* 

 Munroa Torrey. * 

 Orcuttia Vasey.* 

 Gynerium HBK. 

 Arundo Linn. 

 Phragmites Trill.* 

 Blepharidachne Hack. 

 (Eremoehlor S. Wats.) 

 Triodia R. Br.* 

 Sieglingia Bernh. 

 Redfieldia Vasey.* 

 Dissanthelium Trim 

 Molinia Schrank. 

 Eragrostis Host.* 

 Eatonia Paf.* 

 Koeleria Pers.* 

 Catabrosa Beau v.* 



Melica Linn.* 

 Korycarpus Zea.* 

 (Diarrhena Raf. ) 

 Pleuropogon R. Brown. ' 

 Uniola Linn.* 

 Distichlis Raf.* 

 Briza Linn.* 

 Dactylis Linn.* 

 Cynosurus Linn.* 

 Lamarckia Moench.* 

 Poa Linn.* 

 Colpodium Trin. 

 Dupontia R. Br. 

 Scolochloa Link. 

 Graphephoruni Desv.* 

 Panicnlaria Fabr.* 

 (Chiceria R.Br.) 

 Puccinellia 1'arl.* 

 Festuca Linn.* 

 Bromus Linn. 



