no Memoirs Picniicc I'. lUshof^ Miisciini 



Racemes reduced to a sing'le juint, long-peduncle<I in a simple cunlracted iianicle 



" 48. Rh APHIS (p. 219) 



Racemes of several to many joints, solitary 4Q. Hktkroi'ocox (p. 221) 



Fertile spikelet without a callus, the rachis disarticulatinL; immediately below the spikelet : 

 awns slender. 



Racemes of several to many joints, solitary, dii,;'itale, or aggregate 



4<). An'dropocon (p. 215 ) 



Racemes reduced to one or few joints, these mostly peduncled in a sul^simple or com- 

 pound jianicle 47- /-oi.cfs (p. 217) 



TRIPSACEAE. 



A single genus (besides the cultivated corn 1 in the Hawaiian islands 50. Coix (p. 222) 



DEvSCRIlTlOX 01- Till': OEXliRA AND SrKClKS. 



I. SCHIZOSTACHYUM Xees. 



Spikelets slender, cylindric : glumes narrow, usually nmcronate : lemmas 2 to 3. the 

 lower I or 2 sterile and like the glumes in appearance, the fertile i or 2, much imbricate and 

 convolute ; palea similar to the lemma, coiivolute, not keeled ; rachilla prolonged and bearing 

 a rudimentary floret; lodicules usually 3. narrow, lanceolate, ciliolate; stamens 6; ovary 

 narrow, with a long style and 3 stigmas : caryopsis ovoid, beaked, inclosed in a crustaceous 

 separate pericarp. Arborescent or shrubby usually erect bamboos with panicles of spicate 

 branches, bearing heads of spikelets, in some species reduced to a spike of heads. 



I. Schizostachyum glaucifolium ( Ku]ir. ) Mnnro, Trans. Liim. Soc. 2<t:}^-. 1868. 



Baiiiluisa i^ldidifulia Kupr. Mem. Acad. St. Petersb. \'I. Sci. Xat. 3' 1147. 183Q. 



Culms erect, as much as fi cm. thick at liase. the culm-sheaths 10 cm. l)road : foliage- 

 blades linear-oblong, as much as 30 cm. long and 3.3 cm. wide, rather abruptly contracted at 

 the base into a ])etiole about 5 mm. long, narrowed at apex to a fine involute point, glabrous, or 

 scaberulous on the upper surface near the apex, the margin glabrous or scabrous, the midrib 

 whitish and rather prominent below, the primary veins about 10 pairs; sheaths glabrcuis, the 

 throat glabrous ; ligule a short firm ridge less than i mm. long, slightly ciliate ; inflorescence on 

 clusters of slender branches from the nodes ; spikelets in heads, spicate or paniculate along the 

 branches, the heads about 2 cm. in diameter, in many specimens contiguous, the whole branch 

 30 to 40 cm. long; spikelets fusiform-cylindric, about i cm. long, pale, tawny or stramineous, 

 2 or 3 in the axils of bracts, the bracts similar to the glumes but longer. 



The three specimens cited are floriferous but the spikelets are all sterile and 

 show no stamens or pistils. They may not l)e correctly referred to S. glaucifolium 

 but are the same as Munro's specimen. Munro' remarks that the specimen exam- 

 ined by him, this or a duplicate being in the Gray llerlxirium (Tahiti, Wilkes 

 Exped, ), was in the same condition. The spikelets are sessile. 2 or 3 together, 

 bearing 4 bracts, each successively longer, the first 3 similar, convolute, nerved, 

 mucronate, the fourth very slender, tightly rolled and much convolute. There 

 appears to be no prolongation of the rachilla. 



Munro's reference to locality is ambiguous: "Hah. in insulis Uceani I'acitici, 

 Tahiti. Hawaii! Wilkes (tlorif.), no. 130, Guillemin, (^"Ovhe", incolis) Bertero, 

 Moehroch; Fiji ('Bitu' incolis), 694! Seemann; Samoa, Fiji, Wilkes; Xukahiva, 

 Kyber." He further states that he has "seen only one flowering specimen of this 



'^ Mnnro. Colonel, Monoijrapli of the Eanibnsaceae : Linn. Soc. London, Trans. Vol. Jd. p. 1,17. 1S68. 



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