GRAMINEiE. Andropogon. 203 



15. A. citreus, spicis semiexsertis muticis, rachibus sericeo- 

 barbatis, gluma exteriore hermaphroditi acumine bifido 

 pectinatim ciliato: neutrius acumine indiviso,culmo rcnoso 

 vaginisque laevibus, geniculis imberbibus. (T.) v. v. 



SACCHARUM. L. Schreb. 



Flores omnes hermaphroditi, spicati, spicis fasciculatis v. pa- 

 niculatis, articulis bifloris, rlore altero pedicellato. Gluma 

 biflora, bivalvis, subaequalis, basi barbata. Flosculi in- 

 clusi : interior hermaphroditus, bivalvis, hyahnus, val- 

 vula exteriore mutica v. aristata, interiore minuta v. 

 obsoleta; Squamulis 2 hypogynis, Staminibus ^aepius 3, 

 Stylis 2, Stigmatibus plumosis : exterior neuter, univalvis, 

 muticus. 



Obs. Lana longissima sericea spicae, textura tenuius mem- 

 branacea glumas, perianthiaque saepius mutica vix suffi- 

 cient ad separandum Saccharum oflicinarum L. sponta- 

 neum L. speciesque similes ab Eriantho Mich., sequenti- 

 bus Novae Hollandiae aliisque Indiae orientalis nondum de- 

 scriptis, habitu omninb Andropogonis, pariter aristatis et 

 ab eo diversis solummodb floribus omnibus hermaphroditis 

 xiniformibns. 



In Saccharo officinarum L. cujus perianthium univalve ab 

 auctoribus descriptum est, semper inveni valvulas tres 

 quarum equidem interior compresso-nliformis et interme- 

 dia minutissima. 



1. S.irritans, spicis digitatis aristatis, rachi sericeo-barbata, 



glumis pubescentibns : valvula altera aristata, perianthii 

 arista elongata infra barbata, foliis subinvolutis, vaginis 

 laevibus, geniculis imberbibus. (T.) v.v. 



2. S. fulvum, spicis digitatis, rachi sericeo-barbata, glumis 



villosis muticis, perianthii arista imberbi, foliis planis 

 apice involutis, vaginis laevibus, geniculis narbatis. (T.) v.v. 



IMPERATA. Cyrill. ic.fasc. 2. t.W. 



jF/omomnes hermaphroditi, geminati, altero pedicellnto. Glu- 

 ma bivalvis, biflora, aequalis, mutica, Jana cincta. Peri- 

 anthia inclusa, hyalina, mutica ; exterius univalve, neu- 

 trum ; interius bivalve, hermaphroditum, valvula interiore 

 latiore. Sr/uamnlce nullae hypogynae. Stamira2. Styli2. 

 Stigmata plumosa. 



2 D 2 Obs. 



