PAPPOPHORUM AUCHERI, Nob.
PAPPOPHORUM, Schreb.
Subgenus ENNEAPOGON, Desv., in Journ. de Bot., vol. 3, p. 70. — Kunth, Enum. Gram., p. 254,
PAPPOPHORUM AUCHERI, Nob.
Planta perennis, multicaulis, confertissimecæspitosa. R adix fibrosa; fibris-filiformibus, subsimplicibus. Caules5-g pollices
longi (inflorescentia non adjecta), ascendentes’ v .; erecti, simplices,' graciles, lævigati, teretes, striatuli, pauci-nodi, nodis
barbato-lanulosi, cætëro modo glabri modo pube brevi molli subtomentosi (pilis, simulac pubis foliorum et glumarum,
plerisque apice clavato-v. subgloboso-inflatis), nodis inferioribus geniculati; internodia inferiora vaginis. paulo longiora ; arti-
culus summus elongatus (3-7-pollicaris), strictus, demum longe exsertus ; nodi crassiusculi. Folia subcoriacea, crassiuscula^
•dauca, nervosa, papilluloso-scabra, molliter villosula, involuta; radicalia 1-2 pollices longa, ad caulium basin distiche concerta
(vaginis imbricatis), caulinis angustiora, subulato-filiforroia, alia recta, alia plus minusve falcata; càülina radicalibus la-
tiora et minus involuta, 1 -2 pollices longa, lanceolato-linearia, acuta, nunc recta nunc subfalcata. Vaginæ subcoriaceæ, nervosæ,
simili modo ac folia papillulosæ et puberulæ. Vaginæ infimæ imbricate, marcescentes, pleræque subovatæ ventricosæ. Vaginæ
foliôrum superiorum inv.ohitæ, non ventricosæ, bre barbato-lanulosæ. Ligula obsoleta v. nulla. P anicula 2-4 pollices longa,
müïtispiculata, oblongo-ràcemiformis, densiuscula (basi tarnen haud raro interrupta), contracta, erecta, subsimplex, florum
‘ aristis conspicue setosa simulque' hirsuta. R hachis continua, gracilis, angulosa; lanulosa (simulac spicularum pedunculi),
flexuosa Ramuli filiformes, erecti, flexuosi, in paniculis macrioribus breves solitarii 2Tv. 3-spiculati, in paniculis.yegetioribus
subterni.(saitem ad inflpr.escentiæ partes inferiores), plus minusve. elongati, in quo vis fasciculo inæquales, plerique 5-7-spiculati,
•nunc simplices, nunc ramillul6si. SricüLÆ 3-v. 4-floræ, breve pedicellate, conformes, teretiusculæ, quasi papposæ, præflora-
tionc-lineari-v.'oblbngô-lànceblatæ. F lores ad rhachillam filiformem flexuosamlanulosam alterni, disticbi, approxiraati, sessiles
(excepta summo)'. Flos infimus major, bipaleaceus, hermaphroditus, triandrus. Flores reliqui neutri ; ex his inferior bipaleaceus,
flore perfecto paulo minor; sequentes unipaleacei, minuti; summus stipitulatus. Gluma bivalvis, persistens. (etiam delapsa
rhachilla fructifera), flore.perfecto (bujus aristis prætermissis).subduplo longior, aristis florum superata. Valvæ membranaceæ,
semi-pellucidæ, stramineæ v. violascentes, alternæ, 6-9-nerviæ (nervis filiformibus, subæquicrassis, aliis infra medium aliis
altius evanescêntibus, nervo medio solo apicem fere attingeiite, sub antHesi viridibus v. violascentibüs), hayicularés, nervo
medio carinulatæ, inæquilongæ, subconformes, ovato-v. oblongo-lauceolatæ, sensim acutatæ, apicenuncintegerrimænunc acute
emarginatæ v. irregulariter dentato-laceræ, muticæ. exàristatæ, subdivergentes ( sub anthesi), dorso villosulæ (ad nervös
præsertim) et nervo-carinali sub lente aculeolatæ, facie glabræ, utrinque papilluloso-punctulatæ. Valva-externa (inferior) 3-3 1/2
lineas longa. Valva interna paululo altius inserta, valva externa circiter dimidia linca longior et paulo angustior. Glumell*
paleæ inæquilongæ, dissimiles, ad rhachillam maturitate una cum fructu floribusque neutris deciduam. persistentes. Palea-
externa major chartacea, rigidula, opaca, stràminea,:concava (subtubuloso-inflexa), ecarinata, ovalis v. oblonga, 9-nervia
(nervis filiformibus, subæqualibus, parallelis, apice subincrassatis), apice g-fida (laciniis dentiformibus, in aristam desinentibus),
dorso a basi ad medium longe setoso-hirsuta (plerumque' dense) simulqûè ad apicém usque villosula, facie ad apicem plus
minusve barbata reliqno glabra v. laxe hirsuta, adjectis aristis 4 i/ a - 5 lineas longa (aristis prætermissis i - 1 1/4 lineam); fructifera
subventricosa. A ristæ setaceo-subulatæ, planiusculæ, strictæ, plus minusve divergentes, violascentes, inæquilongæ
(media omnibus longior, reliquæ alternatim breviores'et siibtriente longiores); a basi ad medium v. paulo altius usque longe
plumosæ, inde ad apicem serrulato-ciliblâtæ, riudæ. Palea. externâ floris neutri infimi similis paleæ externæ Abris fertilis, at
paulo minôr.- Paleà floris neutri sùmnii minima, 3- 5-aristiilata. Palea- interna membranacea, hyalina, palea-externa (hujüs
aristis prætermissis) paulylo brevior at angustior, carinato-binervia(carinisimmarginatis), spathulato-oblonga, dorso, concava,
lateribus inde a nervis inflexa et puberula, carinis villosula, reliquo glabra, apice obtuse emarginata. Squamulæ-hypogynæ
minimæ,.glaberrimæ, carnulosæ, persistentes, cunéiformes, apice truncate v. rotundatæ, interdum retusæ, sub anthesi ovario
tripio treviores. Stamina sub anthesi glumella longiora. F ilamenta capillaria, flaccida. Antheræ ovales, medio affixæ, basi
et apice obtuse bilobæ. Pistillum sub anthesi staminibus brevjus. Ovarium,minimum, glaberrimum, stipitulatùm, oblphgum,
teretiuscûlum, apice obtuso'inter stigmata quasi in denticulum production. Stigmata 2, laterali-terminalia, filiformia, eldngatà,
divergentia, basi glàbra, cæterum breve plumosa : pilis-ramosis. Caryopsis minuta (2/3-3/4 lineæ longa), glumellæ palea-in-
terna paulo brevior, inadhærens, glaberrima, lævigata, brunoea, subtrigona v. lenticularis, e’liptica v. obovata, basi et apiqc