MANUAL OF THE GRASSES OF THE UNITED STATES 



685 



Figure 1541.— Distribution of 

 Panicum obtusum. 



130. LASIACIS (Griseb.) Hitchc. 



Spikelets subglobose, placed obliquely on their pedicels; first glume 

 broad, somewhat inflated-ventricose, usually not more than one-third 



the length of the spikelet, sev- 

 eral-nerved; second glume and 

 sterile lemma about equal, 

 broad, abruptly apiculate, 

 p apery-chartaceous, shining, 

 many-nerved, glabrous, or 

 lanose at the apex only, the 

 lemma enclosing a membrana- 

 ceous palea and sometimes a 

 stamina te flower; fertile lemma white, bony-indurate, 

 obovoid, obtuse, this and the palea of the same tex- 

 ture, bearing at the apex in 

 a slight depression a tuft of 

 woolly hairs, the palea concave 

 below, gibbous above, the apex 

 often free at maturity. Large 

 branching perennials, with 

 woody culms often clambering 

 several meters high into shrubs 

 or trees, the blades firm, flat, 

 usually lanceolate and narrowed into a petiole, the figure 1542.— Pani- 



• ■, t , • • 1 m ' t • • cum hemitom'on. 



spikelets m an open panicle, lype species, Lasiacis panicle, x 1; spUce- 



divaricata. Name g^J Sf'rii. 1 ) 0, 

 from Greek lasios, 

 woolly, and akis, point, alluding to 

 ,\ the tuft of wool at the tip of the 



fruit. 



1. Lasiacis divaricata (L.) Hitchc. 

 Tibisee. (Fig. 1546.) Glabrous 



Figure 1543.— Distribution of 

 Panicum hemitomon. 



Figure 1545.— Distribution of 

 Panicum gymnocarpon. 



throughout except the margins of 

 the sheaths; culms much branched, 

 clambering over shrubs to the height 

 of 3 or 4 m, the main culm (cane) 



Figure 1544.— Panicum gymnocarpon. Panicle, crrnno- i* rmirVi no fi mm in Hinm- 



x i; spikelet and floret, x io. (Type.) strong as mucn as o mm in diam- 

 eter, the mam branches oiten fas- 

 cicled, the vigorous secondary sterile shoots usually strongly divari- 

 cate or zigzag; blades narrowly lanceolate, 5 to 20 cm long, 5 to 15 

 mm wide, or larger on vigorous sterile shoots; panicles terminating 



