Jones: Flora of Illinois, 22. Gramineae 59 



10. Spikelets 2-2.5 mm. long; glumes subulate-lanceolate, somewhat 

 shorter than or nearly equalling the lemma; anthers 0.3-0.6 

 mm. long; moist woods. Aug.-Oct. [M. torreyi (Kunth) 



Hitchc; M. umbrosa Scribn.] M. sylvatica Torr. 



3. Plants without scaly rhizomes; glumes lanceolate, shorter than the awn- 

 less lemma; anthers 1-1.5 mm. long; dry ground, n. 111. July-Sept. 



[Sporobolus brevifolms (Nutt.) Scribn.] 



M. cusptdata (Torr.) Rydb. 



1. Panicles open, the slender branches widely spreading. 



11. Spikelets 3-4 mm. long, the awns 1-2 cm. long; stems 60-100 cm. tall, 



tufted; rhizomes none; sandy soil, s. 111. Sept.-Oct 



M. capillarts (Lam.) Trin. 



11. Spikelets 1.5-2 mm. long, awnless; stems 10-40 cm. tall; plants with 

 creeping scaly rhizomes; sandy soil. June-Sept. [Sporobolus asperi- 

 folius Nees & Mey.} M. asperifolia (Nees &: Mey.) Parodi 



37. Sporobolus R. Br. — Dropseed 

 1. Plants perennial; leaf -blades much longer than the sheaths. 



2. Spikelets 1.5-2.5 mm. long; panicle either free and spreading at matur- 

 ity or remaining partly or wholly included in the sheath; leaf-sheaths 

 with a conspicuous tuft of whitish hairs at summit; sandy soil. Aug.- 



Sept S. cryptandrus (Torr.) Gray 



2. Spikelets 4-8 mm. long. 



3. Second glume shorter than the lemma; panicle contracted, more or less 

 included in the sheath. 

 4. Lemma glabrous, glossy; spikelets 5-6 mm. long; dry sandy soil. 



Sept.-Oct S. asper (Michx.) Kunth 



4. Lemma pubescent at base; spikelets 6-8 mm. long; sandy soil, s. 111. 



Aug. -Sept. [S. canovirens Nash} 



S. clandestinus (Spreng.) Hitchc. 



3. Second glume about as long as the glabrous lemma; spikelets 4-6 mm. 



long; panicle long-exserted at maturity; dry soil. Aug.-Sept 



S. heterolepis Gray 



1. Plants annual; sheaths enclosing the lateral panicles; leaf-blades short, scarce- 

 ly longer than the sheaths. 

 5. Lemma pubescent; spikelets 3.5-6 mm. long; dry sandy soil. Sept.-Oct. 



S. ragiiiiflorus (Torr.) Wood 



5. Lemma glabrous; spikelets 2-3 mm. long; dry sandy soil. Sept.-Oct. 



S. neglectus Nash 



38. Heleochloa Host 

 H. schoenoides (L.) Host. Waste places, occasional; introd. from Eur. 



39. Brachyelytrum Beauv. 

 B. erectum (Schreb.) Beauv. Woods. June- Aug. 



40. Milium L.— Wild Millet 



M. effusujn L. Moist woods. Kane Co., Vasey; Tazewell Co., Brendel. 

 May-July. 



