MANUAL OF THE GRASSES OF THE UNITED STATES 501 



Figure 1062.— Distribution of 

 Chloris petraea. 



blades flat or folded, as much as 1 cm wide, the tip abruptly rounded ; 



spikes several to many (as many as 20), 

 ascending, 7 to 12 cm long; spikelets 

 about 2 mm long; lemma glabrous or 

 scaberulous on the nerves. % {Eu- 

 stachys glauca Chapm.) — Brackish 

 marshes, wet prairies, and swamps, 

 North Carolina (Wilmington), Georgia 

 (Baker County), and Florida. 



2. Chloris petraea Swartz. (Fig. 1061.) 

 Often glaucous, 

 sometimes pur- 

 plish ; culms slen- 

 der, as much as 100 

 cm tall, more or less 

 decumbent and 

 rooting or produc- 

 ing distinct sto- 

 lons; sheaths com- 

 pressed, strongly keeled, usually 2 to 4 

 aggregate at the lower 1 or 2 nodes; 

 blades 3 to 8 mm wide, often short and 

 numerous on the stolons; spikes mostly 

 4 to 6, 4 to 10 cm long; spikelets 2 mm 

 long; lemma mucronate, short-ciliate on 

 the nerves. 01 (Eustachys petraea 

 Desv.) — Strands, sandy fields, and open 



pine woods, Coastal Plain, North Carolina to Florida 



and Texas; tropical America (fig. 1062). 



3. Chloris floridana (Chapm.) Wood. (Fig. 1063.) 

 Culms slender, 40 to 80 cm tall; sheaths compressed, 

 crowded at base but not paired or aggregate at succeed- 

 ing nodes; blades 3 to 7 mm wide, somewhat narrowed 

 toward the acutish tip; spikes mostly 2, sometimes 1 

 or 3, 5 to 10 cm long; spikelets 3 mm long; second glume 

 with an awn about 1 mm long; lemma with a slender 

 mucro 0.5 to 1 mm long, stiffly ciliate on keel and 

 lateral nerves. 01 (Eustachys floridana Chapm.)— Dry 

 sandy woods and open ground, Georgia and Florida. 



4. Chloris neglecta Nash. (Fig. 1064.) Differing 

 from C. floridana in having usually taller, stouter culms, 

 the leaves sometimes paired at the lower nodes; spikes 

 3 to 8, mostly 4 to 6. % (Eustachys _ neglecta Nash.) — 

 Open sandy woods and swamps, Florida. 



Chloris distichophylla Lag. Culms about 1 m tall; 

 spikes several (as many as 20), drooping, feathery; 

 lemma ciliate with silky hairs 1 mm long. 01 — Es- 

 caped from cultivation in southern California. A 

 specimen from Bastrop, Tex., is probably also an 

 escape from cultivation; South America. 



Figure 1061. — Chloris 

 X 1; florets, X 5. 



petraea.. Plant, 

 (Curtiss, Fla.) 



ill 



Section 2. Euchl6ris Endl. 



Lemmas tawny to grayish or fuscous, awned; glumes 

 acute to acuminate. Mostly perennial. 



Figure 1063.— 

 Chloris flori- 

 dana. Panicle, 

 X l; florets, X 

 5. (Nash 2198, 

 Fla.) 



