94 



Bambuseae 



Arundinaria 



Miles 



TB 



Map 119 

 Arundinaria gigantea (Walt.) Chapm. 



50 



Map 120 



Bromus stenlis L. 



Map 121 

 Bromus tectorum L. 



Spikelets essentially 2-flowered in structural plan, the lower floret represented by a 

 sterile lemma, the first glume sometimes lacking; various types of imperfect 

 flowers common; spikelets never strongly compressed laterally. 

 Spikelets usually not in pairs; fertile lemmas thicker or firmer than the glumes 



and sterile lemmas 10. Paniceae, p. 147. 



Spikelets in pairs (sometimes in threes), one member sessile, the other (or others) 

 pedicellate (occasionally both sessile or pedicellate), the pedicelled member 

 often variously reduced in structure, represented by only a pedicel or a 

 microscopic rudiment in extreme cases; fertile lemmas thin and papery; 

 glumes firmer. 

 Spikelets in pairs, one sessile and perfect, the other pedicellate and usually 

 staminate or neuter (the pedicellate one sometimes obsolete), rarely both 



pedicellate; lemmas hyaline 11. Andropogoneae, p. 177. 



Spikelets unisexual, the pistillate below, the staminate above, in the same in- 

 florescence or in separate inflorescences 12. Tripsaceae, p. 181. 



1. BAMBUSEAE Nees. Bamboo Tribe 



1M14'. ARUNDINARIA Michx. Cane 



[Galloway. Bamboos : their culture and uses in the United States. U. S. 

 Dept. Agric. Bull. 1329 : 1-44. illus. 1925.] 



Panicles on leafy branches; culms as much as 10 m high 1. A. gigantea. 



Panicles on leafless shoots from creeping rhizomes. (See excluded species no. 39, 

 p. 1025.) A. tecta. 



1. Arundinaria gigantea (Walt.) Chapm. (Arundinaria macrospenna 

 Michx. of Gray, Man., ed. 7, of Britton and Brown, Illus. Flora, ed. 2, and 

 of Deam, Grasses of Ind.) Southern Cane. Map 119. This species is 

 restricted to southern Indiana. I have found it only in the counties border- 

 ing the Ohio and Wabash Rivers. Kriebel, however, found it along Beaver 

 Creek near Huron, Lawrence County, and there is a place named "cane 

 marsh" in Greene County which indicates that it, at one time, did occur 

 in that county. This species is usually found in lowlands that are periodi- 



1 The first number refers to the numbers used in Hitchcock's Manual of Grasses of the United States. 

 - The second number refers to the numbers used in Dalla Torre and Harms' Genera Siphonogamarum. 



