1142 CC. GRAMINE, LAgrostidec. 
S. arenariam, Brot. Phytogr. Lusit. t. 7, 8, species spieulis magnis membranaceis insignes, gluma 
florente apice membranaceo-2-fida,' quod tamen plus minus in aliis speciebus observatur. 
AmisTELLA, Bertol. Fl. tal. i. 690, est S. aristella, Linn., Sibth. Fl. Grec, t. 81. Host, Gram. 
Austr. iv. t. 34, a speciebus typieis distineta rhachillo internodio seu callo non evoluto, gluma 
florente ad latera aristze breviter 2-fida, antheris imberbibus et lodieulis 2 nec 3. Rhachillee inter- 
nodium tamen etsi abbreyi: distinete obconi est et vix brevius quam in S. sibirica, Lam., 
S. Redowskii, Trin., S. altaica, Ledeb., speciebus cxterum S. aristelle plus minus affinibus; gluma 
florens in speciebus pluribus presertim Australianis apice 2-dentata v. 2-fida, antherarum barba in 
genere inconstans, et lodicula tertia etsi ssepius lateralibus equalis, in speciebus nonnullis minima 
v. deficiens dicitur. 
SrnEPTACHNE, R. Br, Prod, 174; Benth. Fl. Austral. vii. 671 (OnrRORAPHIUM, Nes in Proc. Linn. 
Soc. i. (1841), 94), species pauez Indico v. Australiame, vix ab 4ristella differunt. Arista in his 
ut in Aristel/a eum gluma sepissime (an semper ?) continua nec articulata. 
Janava, Ruiz et Pav. Prod. Fl. Per. 2,1. 1; Fl. Per. et Chil. i. 5, t, 6, est S. Jarava, Kunth, 
(S. eriostachys, H. B. et K. Nov. Gen. et Sp. t. 41, S. papposa, Nees), spiculis in ramulis densis 
panieule elongatz parvis, gluma. florente ad originem aristz pilis longis coronata quasi papposa. 
Glume similes observantur in speciebus 6 v. 6 austro-Americanis habitu vario. Cav. Zc. 7. 466. 
Dell in Mart. Fl. Bras. ii, iii, £. 2, 
8. pennata, Linn., cum speciebus paucis tam gerontogeis quam Americanis insignes sunt glumoe 
florentis arista supra basin plus minus pilis longis patentibus plumosa, Zos/, Gram, Austr. iv. £. 33. 
Lasmemosri, Link, Hori. Berol, i. 99, Nees, Gen. Fl. Germ. Monocot. i. n. 25 (AcuwaTHERUM, 
Deauv. Agrostogr. 19, t. 6, f. 7), genus primum ad S. calamagrostem, Wahlenb., Zeichb. Ic. Fl. 
Germ. 1. 46, propositum, a Neesio v. Trinio ad Species plures Africanas v. Asiaticas extensum, à 
Stipis pluribus parvifloris non differt nisi gluma fertili infra medium v. totum pilis subpatentibus 
plumosa. Interillas PrrrAGROSTIS, Griseb, in Ledeb. Fl, Ross. iv. 447, est S. mongholica, Trin., eui 
pili glumz usque ad dimidium ariste extensi sunt, 
Stipa verticillata, Nees, a Benth. in Fl. Austral, dubie sed ut videtur errore ad S. micrantham, Cav., 
relata, et Apera arundinacea, Hook. f. Fl. N. Zel. i. 295, t. 67 ; Buchan. N. Zeal. Grass. t. 17, species 
inter se simillims at bene distinetze quasi medium tenent inter Stipaz et, Muehlenbergiam. | Inflores- 
centia et spieule parvze Muehlenbergie ; arista in S. verticillata sepius persistens, sed artieulatio in 
spieula florente ut in Stipa distincta, et in S. (Apera, Hook. £) arundi , arista cadueissi: 
Stamina in &. verticillata 3, in S. arundinacea sepius 1l. His valde affinis est. S. rariflora (Mueh- 
lenbergia. variftora, Hook. f. Fl. Ant. t. 131) ex America antaretica. De planta Cavanillesii confer 
F. Muell. in Trim. Journ. Bot. 1878, 327. 
110. Oryzopsis, Mich. Fl. Bor. Amer. i. 51, t. 9. (Urachne, Trin. Fundam. Agrostogr. 
109. Dilepyrum, Rafin. ex Endl. Gen, PI. 87.)—Spicule 1-florz, ssepius ovatze v. acumi- 
nate, paniculate, rhachilla supra glumas inferi riiculata, sub flore brevissime late 
sepiusque oblique callosa, ultra florem non producta, flore hermaphrodito terminali, 
Glum: 3, 2 inferiores sub articulati persist ; Vacum, mquales v. extima parum 
brevior, obtusse v. acuminate; tertia florens brevior v. paullo longior, lata, sub anthesi 
hyalina v. tenuiter membranacea, florem paleamque 2-carinatam arcte involvens, apice 
obtusa v. truncata, arista terminali S:epius excentrica geniculata basique torta, cum gluma 
articulata scepiusque caducissima, Lodieulze (an semper?) 2. Stamina 3, Styli breves v. 
longiusculi, distincti, stigmatibus plumosis. Caryopsis oblonga, gluma plus minus indurata 
oblique ovata v. angustiore arcte involuta, libera.— Gramina cmspitosa, interdum elata, 
foliis nune planis mollibus, nune convoluto-teretibus. Panicula terminalis, laxa, nunc 
angusta ramulis strictis paucispiculatis nune effusa. floribunda. 
Species ad 24, regionum t p et subtropiearum hemisphwrii borealis et Ameriem 
Genus olim pro sectione aristata Milii habitum, revera Stipe affine, et vix nisi gluma fructifera. 
latiore sepius obliqua distinetum, genera plura a variis auctoribus proposita includit et bene in 
sectiones 3 sequentes dividitur:— 
1. Piptatherum, Rhachilla sub flore nuda. Gluma fructifera parum obliqua, glabra v. villosa, 
arista subcentrali. Species omnes gerontogem. Schreb, Beschr, Grüs, t, 28, f. 2 (Milium). | Host, 
