371 



Bulletin de rJLI>ad^ifiie Impl^riale 



per, in insula Mauritius (Cymbopogon glandulo- 

 sus herb. Nees.), in Bhotan (Irerb. LindL), in Ne- 

 paulia (teste Steud.) — Radix fibrosa, annua. Culmi 

 caespitosi, elongati, adscendentes, ramosi, peda- 

 les et ultra, ad nodos barbulati, caeterum gla- 

 bri. Foliorum vaginae ad basin fissae, apicem 

 versus plus minus hirsutae v. margine tantum 

 ciliatae; ligula brevis, ciliata; lamina a basi cor- 

 data amplexicauli lanceolata, utrinque pilosula, 

 margine a basi usque supra medium plus minus 

 ciliata, internodio longior. Spicae binae v. ter- 

 nae, terminales, longe exsertae. Rudimentum spi- 

 culae tubescentis pedicelliforme , villosum , spi- 

 culam dimidiam fertilem subaequans. Glumae ad 



nervos latere exteriore hispidulae; inferior oblongo- 

 lanceolata, acuta, 7 — 9 nervia, viridis; superior 

 lanceolata, acuminata, inferiorem paullo superans, 

 nerve dorsali nervisque lateralibus obsoletioribus 



' percursa. Flos inferior neuter ad paleam lineari-lan- 

 ceolatam membranaceam parvam reductus. Flos 

 Superior bipaleaceus; palea inferior lineari- lan- 

 ceolata, membranacea, supra basin aristata, apice 

 bifida, gluma plus duplo brevior;. palea superior 

 minima, lanceolato subulata. Arista geniculata, spi- 

 cula 2 — 3plo longior. Rhacheos internodia spicula 

 fertili duplo breviora, villosa, apice barbata. 



Tab. X fig. 13. Spicula, aucta. a. Rhacheos internodium 



spiculae superioris. h. Rudimentum pe- 

 dicelliforme spiculae tabescentis. c. Glu- 

 ma inferior, d. Gluma superior, e. Arista. 





» 



» 1 4. Flosculi, aucti. a. Palea flosculi 

 ' 5. Palea inferior flosculi fertilis 



basilari 



Palea superior, d. Ova 



num. 



Sect. II. Lucaea. 



Spicula fertilis sessiUs hasi rudimenio spiculae tabescentis 

 pediceUiformi satis conspicuo v. minimo instmda. 



4) P. Langsdorffii Trin.; rhacheos spicularum interno- 

 diis V. omnibus glahris v. apice pilosis v . paucis barbu- 

 latis V. supremisplus minus pilosuUs ; glumis muticis; 

 arista inclusa v. spicidam usque duplo superante. 



ser. VI, tome II, pag. 274 

 Agrost. syn. pag. 



472 



Lucaea gracilis Kntb. 

 Ejusd. euum. I. suppi" 



Lu- 



^^ 



pag. 382. — Ejusd. distr. des gr. tab. 159. 

 caea gracilis et Langsdorffiana Steud. syn, 

 pag.413. — Deyeuxiajaponica Sprgl. syst.V^pag^ 

 254. — Habitat in Japonia, in China, in desertis 



iricis et in provinciis caucasicis. 

 Species valde polymorpha. Radix fibrosa, annua. 

 Caules caespitosi, prostrati, apice adscendentes ra- 

 mosi, glabri, spithamaei usque sesquipedales. Ta- 

 giuae ad basin fissae, striato-sulcatae, v. omnino 

 patenter hirsutae, v. sparse pilosae, v. praecipue 

 apicem versus margine ciliatae, caeterum glabrae 

 v. totidem glabrae, supremae magis elongatae la- 

 mina minima terminatae. Ligula brevis. truncata. 



glabra v. pi 



Folia e basi cordata 



oblon 



lata, utrinque glabra v. plus minus pilosula, mar- 

 gine basi tantum ?. a basi ad medium v. ad apicem 

 pilis clongatis ciliata, culmi internodio plerumque 



& 



bi 



Sp 



tato 



m apice 



binae v. ternae v. saepius iterato bifidae subdigi- 



•um elongatoruB 



vagina suprema 



in quavis spica, 



nudorum terminales 



vix 



Spicula 



3 







Rhacheos 



alternae, solitariae, adpressae, rhacheos internodio 

 paullo usque sesqui longiores , basi rudimento pe- 



* - 



dicelliformi spiculae tabescentis minimo v. usque 

 spiculam dimidiam aequante instructae. 

 internodia articulata, glabra v. apice pili 

 barbulata v. suprema pilorum serie vest 

 mae florcs includentes. Gluma inferior o' 

 ceolata, herbacea, acuta, mutica, dorso 

 7 — 9-nervia, nervis in dorse glumae stib 1 



Glu 



bris; gluma superior inferiorem subaequans, laii 

 ceolata, carinata, scariosa, scabra utrinque nervi 

 unico lateral! vix conspicuo percursa, apice acuta 

 mutica. Palea flosculi iuferioris lanceolato-oblonga 

 mutica, hyalina, enervia, glabra, gluma triple cir 

 citer brevior. Flosculus superior fertilis, bipalea 

 ceus; palea inferiore gluma superiore contigua ip 

 soque triplo breviore, lanceolato-oblonga, acuta, 



?: ^^^^^^SlB^ '^'l"- ^""^^"^^"^^ Agrostogr. pag. [ hyalina, enervia, dorso supra basin aristata, Arista 



palea breviore v. saepius exserta gem- 



basi 



Sta- 



174, fig. XVL — P. centrasiatica Griseb. inLedb. 

 fl. ross.pag.477. — Andropogon amplexifolius Trin. 

 in M^m. de I'Ac. Imp. des so. nat. de St. Petersb., I 



sesqui usque duplo superans 



insigniter torta. Squaraulae duae 



r 



