222 Memoirs Bcniicc P. IVishnp Museum 



Oalin : Tlonolulu, Hitchcock 137-I. 14060. \\'itlKnit locality, Mann &■ T'.rit;hani 2; 



I )i(lrichson. 1845-47: Rcniy icx^ (Gray Herbarium). 

 Molokai : T'ukoo. Hitchcock 15053. Above Kaluokoi. Rock 6179. 

 Lanai : Hitchcock 14686. 

 Hawaii: Hilo. Hitchcock 14202. 

 Without locality: "Sandwich Islands" Wilkes K.xpl. Ivxpcd. 



50. COIX L. 



^ S|>ikc!cl> unisexual: staininatc .spikx'lets 2-flo\verc(l. in twos or llirecs <m tlif conlinuous 

 racliis. the normal .tjroup coiisistinijf of a i)air of sessile s])ikelets with a sinjjle pedicellate spikelel 

 lietween them, this sometimes reduced to a pedicel or wantintj; tjlumes membranaceous, 

 obscurely nerved ; lemma hyaline, nearly as long as the [.jluuies, awnless, 5-nervcd : jialea 

 hyaline, a little shorter than the lemma : stamen.s ^ ; pistillate spikelets 3 together, i fertile and 

 2 Sterile at the base of the inflorescence : fertile s])ikelet consisting of 2 glumes. 1 sterile lemma, 

 a fertile lemma, and a palea ; glumes several-nerved, hyaline below, chartaccous in the upper 

 narrow pointed ]iart. the first very broad, infolding the sijikelet, the margins infolded beyond 

 the 2 lateral stronger ])air of nerves, the second glume narrower than the first, keeled: sterile 

 lemnia about as long as the second glume, similar in sliapc, but a little narrower, hyaline below, 

 somewhat chartaccous above: fertile lemma hyaline, narrow, somewhat shorter than the sterile 

 lemma ; palea hyaline, narrow, shorter than the lemma ; sterile spikelets consisting of a single 

 narrow tubular glume as long as the fertile spikelet, somewhat chartaceous. Tall branched 

 grasses with broad flat blades, the monoecious inflorescences numerous on long, stout peduncles 

 clustered in the axils of the leaves, each inflorescence consisting of an ovate or oval, pearly 

 white or drab, beadlike, very hard, tardily deciduous involucre (much modified sheathing bract) 

 containing the pistillate lower portion of the inflorescence, the points of the pistillate spikelets 

 and the slender axis of the staminatc portion of the inflorescence ])rotruding through the orifice 

 at the apex, the staminate upper portion of the inflorescence 2 to 4 cm. long, soon decicluous, 

 consisting of several clusters of staminate spikelets. 



I. Coix lachryma-jobi I-. Sp. I'l i)/2. 1753. Joi-.'s Tii.xus. 



Freely branching perennial as much as i meter tall ; blades cordate-clasping, 2 to 3 cm. 

 wide: involucres or "beads" 8 to 10 mm. long (fig. 99). 



Moist places; introduced. Originally described from the East Indies. 

 Kauai : Alans' Hanapepe River, Heller 2554. 

 Oahu : Upper Manoa ^^alley, Hitchcock 13738. 

 Hawaii: Hilo, Hitchcock 14176. 



Indian corn or luaize [Zca iiuiys L. Sp. I'l. 071. 1753) is cultivated and waifs are 

 found occasionallv. 



The following species were received too late to be included in the text : 



Bromus rubens I^. Cent. PI. i :5. 17.^5. An annii.il witli compact ovoid inflorescence, narrow spike- 

 lets. and straight awns about 2 centimeters long. Pun Oo R.mcli. Hawaii. Introduced from Europe. Com- 

 nnmicated by Dr. H. L. Lyon. 



Bromus sterilis L. Sp. PI. 77. 1753. .\n annual with open panicle, pendulous, narrow, glabrous 

 spikelets. the awns 1.5 to 2.5 centimeters long. Parker Ranch. Hawaii. Introduced from Europe. Com- 

 municated liy Dr. II. 1,. Lyon. 



Axonopus compressus ( Swartz ) I'.eauv. Ess. .\grost. 12. 1812. (.l/i7/»/ii coin/^icssKiit Sw.irtz. Prodr. 

 V'eg. Ind. Ucc. 24. 172K I'uspahiin coiitf>rcssum Raspail. Ami. Sci. .\at. .i:.?oi. 1825.) Carpet grass. A 

 glabrous stoloniferous peremiial. with flat thin blades 8 to to mm. wide, and 2 to 5 slender racemes along 

 a short axis. Kona. Hawaii. Introduced from tropical .\merica. Collected by Herbert Sbipman and com- 

 municated by Dr. II. L. Lyon. 



Chaetochloa barbata (Lam.) Hitchcock & Chase. Contr. U. S. Xat. Herb. |8:,?48. 1917. {I'.iiiicinii 

 barbattim Lam. Tabl. lOicycI. 1:171. 1791.) .\ weak-sleimned geniculate .atmual with thin, scabrous, more 

 or less plicate blades I lo 3 centimeters wide, narrow rather open uanicles. belonging to the section Pty- 

 chophyllum. Introduced from tropical .Xsia. Mrs. Foster's grounds. Honolulu. Hitclufick 16699. 



[ 124 ] 



