fhtc/icoclc — The (I'rtisscs of ffcia'aii l6^ 



Open grassland at low altitudes, a weed along streets and in lawns and 

 gardens; introduced. Originally described from southern lun'ope. Native name 

 manienie. 



Kauai : Lihue, Forbes 465. 

 Oahu: Honolulu, Hitchcock 13708; DidrichstMi 3444. Ilauula, h'armer 12. W'ai- 



kiki, Heller i960. Without locality, Rcmy 8j (Crav Herbarium). 

 Hawaii: Hilo, Newell in T017. .: 



\\'ithout locality: Hillebrand. 



27. CHLORIS Swaitz. 



Spikelets with t perfect floret, sessile, in two rows aloiis" one side of a continuous rachis. 

 the rachilla disarticulating- above the illumes, jiroduced beyond the perfect floret and bearing 



1 to several reduced florets consistins; of empty lemmas, in some species truncate, and, if more 

 than one, the smaller ones inclosed in the lower, forming; generally a club-shaped rudiment ; 

 o-lumes somewhat unequal, the first shorter, narrow^ acute ; lemma keeled, usually broad, i to 

 5-nerved, often villous on the callus and villous or long-ciliate on the keel or marginal nerves, 

 awned from between the short teeth of a bifid apex, the awn slender or sometimes reduced to a 

 mucro, the sterile lemmas awned or awnless. Perennial or sometimes annual, tufted grasses, with 

 flat blades and few to several often showy and featherv spikes aggregate at the summit of the 

 culms. 



Plants annual 



Rudiment broad and truncate i. C. paragaayensis. 



Rudiment narrow, acute 2. C. radiata. 



Plants perennial. 



Awn less than 2 mm. long; plants abundantly stoloniferous 3. C. gayana. 



Awn more than 5 mm. long ; plants not stoloniferous 4. C. truncata. 



1. Chloris paraguayensis Steud. Syn. PI. Glum. 1:204. 1854. 



Andropo-joii harbatitm l^. Mant. PI. 2:302. 1771. Not Andropogon barbatuin L. Syst. 

 Nat. ed. 10. 2:305. 1759. which is Chloris polydactyla Swartz. 



Chloris barbata Swartz, Fl. Ind. Occ. i :20o. 1797. 



Plants annual : culm's 30 to 60 cm. tall, glabrous ; sheaths glabrous, shorter than the inter- 

 nodes ; blades flat, mostly less than 10 cm. long; spikes few to several. 2 to 5 cm. long, erect or 

 ascending, often a little flexuous, purplish ; spikelets closely imbricate ; glumes narrow, acute, the 

 first 1.5 mm., the second 2 mm. long; fertile lemma broad, obovate, rounded at the summit, 



2 mm. long, a little pilose along the keel, the callus appressed-pilose, the marginal nerves long- 

 silky on the upper half, the slender awn about i cm. long; palea of fertile lemma as long and 

 nearly as broad as the lemma, the keels marginal ; rudiment about i mm. long, of two triangular- 

 truncate thin sterile lemmas, one within the other on a slender stipe, lifted to about the height of 

 the fertile lemma, the awns about 5 mm, long (fig. 51). 



A weed along streets ; introduced. Originally described from Paraguay. 

 Oahu: Honolulu, Hitchcock 13711, 14066; Faurie 1282; Xewell in 1917. 



2. Chloris radiata (L.) Swartz, Prodr. Veg. Ind. Occ. 26. 1788. 



Agrostis radiata L. Syst. Nat. ed. 10. 2:873. 1759. 



Plants annual ; culms decumbent at base, 30 to 60 cm. long ; sheaths glabrous, compressed ; 

 blades flat or folded, 5 to 15 cm. long, 2 to 4 mm. wide, scabrous; spikes ascending, slender, 

 numerous, 4 to 8 cm. long, puliescent at the base, the rachis puberulent ; glumes narrow, awn- 

 pointed, the second 2.5 mm. long ; fertile lemma firm, compressed, narrow, acute. 3 mm. long, 

 short-pilose at base, the margins incurved, the marginal nerves short-pilose toward the tip, the 

 awn delicate, 5 to 10 mm. long; sterile lemma narrow, acute, inclosed by the fertile lemma, 

 the awn 3 to 5 mm. long (fig. 52). 



[65] 



