PAPPOPHORUM BRACHYSTACHYUM, Nob.
PAPPOPHORUM, Nees. — Confer supra, p. 3a.
Sukgenus ENKËAPOGON, Desv. — Confer supra, p. 3a.
PAPPOPHORUM BRACHYSTACHYUM, Nob.
Planta pusilla, cæspitosa, individuis hebetatis Koelerioe villosee similis, uti videtur annua. R adix hbrosa. C atjles 1/2-1 1/2
pollicem longi, conferti, geniculati, diffusi, tere tes, striatuli, lævigati, simplices, foliosi, pube brevi patente copiosa subcanes-
centes(pilis aliis setaceis, aliis apice clavato-aut globoso-incrassatis); nodi crassiusculi, lanuloso-barbulati ; internodia breve
exserta v. inclusa ; ardculus summus erectus, caulibus yegetioribus subpollicaris. Folia simili modo ac caules incano-villosula
simulque scabra (sub lente papillulosaet ad nervös aculeolata), crassiuscula, glauca, nervosa, involuta, filiformia, obtusiuscula,
pleraque subfalcata; radicalia distiche cöriferta, brévia; caulina 5-g ‘lineas longa. Vaginæ nervosæ, ciliatæ, papillulosæ (sub
lente), dorsovillosulæ, facie glabræ, ore baTbulatæ. Vaginæ foliorumradicalium<submembranaceæ,concavæ, subovatæ, distiche
imbricatæ. Vaginæ foliorum caulinorum herbaceæ, involutæ ; summæ plus minusve ventricosæ. L igula obsoleta. P antcola
5- 7 lineas longa, spicæformis, coarctata, ovalis v. oblonga, obtusa, subteres, erecta, terminalis, muldspiculata, florum aristis
setulosa. Ramilluli ereeti, breves, inæquales, filiformes, subfasciculati (2 v. 3) v. solitarii, spiculas 1-4 gerentes. R hachis
continua, substricta, filiformis, villosula. Spicule breve pedicellatæ, conformes, trifloræ, teredusculæ, plurifariam imbricatæ,
minutæ, albido-strainineæ, quasi papposæ, præfloradone lineari-lanceolatæ (1). F lores ad rhachillam filiformem flexuosam
puberulam alterni, disdchi, inferiores sessiles, terminalis stipitatus tabescens. Flos infimus major, bipaleaceus, hermaphroditus,
triandrus, solus perfectus. Flos proxime sequens paulo minor flore infimo, neuter, unipaleaceus (v. palea interna abortiva
ins truc tus). Flos summus item unipaleaceus et neuter, minimus. Gluma bi val vis, persistens, flore perfecto paulo brevior.
V alvæ alternæ, membranaceæ, semi-pcllucidæ, stramineo-albidæ, 5-v. 6-nerviæ (nervis subæqualibus, filiformibus, lateralibus
jam infra valvæ medium evanescentibus, nervo medio paulo ante valvæ apicem evanido), naviculares, nervo medio carinulatæ,
inæquilongæ, subconformes, ovales v. oblongæ, obtuse emarginatæ, muticæ, exaristatæ, dorso laxe pilosellæ, nervo-carinali
sub lente acuieolato, facie glabræ. Valva-externa circiter 1 lineam longa. Valva-internâ externa paulo longior (circiter i/5).
et plerumque subtriente angustior. G lumellæ paleæ (flore perfecto) inæquales, dissimiles, persistentes (una cum rhachilla-
fructifera floribusque neutris delabentes). Palea externa major, chartaceâ, crassiuscula, opaca, straminea, subtubuloso-in-
flexa, eearinata, elliptica, 9-nervia (nervis parallelis, subæqualibus, filiformibus, apice incrassatis), apice 9-fida (laciniis denti-
formibus, in aristulam productis) v. variatione 6-8-fida, dorso a basi ad medium fere usque dense setoso-hirsuta reliquo glabra,
facie juxta apicem breve barbatacætero glabra, adjecds aristulis circiter 2 lineas longa. A ristulæ rectæ v. subarcuatæ, plus minus
vé divergentes, stramineæ, inæquales (plerumque 5 inter se subæquales, paleaipsa subdimidio longiores, aristulisinterpositis
brevioiibus subsemel longiores), setaceo-subulatæ, planiusculæ, a basi ad medium v. paulo aldus usque breve plumosæ, inde
ad apicem ciliolatæ. Palea externa floris neutri inferioris conformis paleæ externæ floris perfecti at subtriente minor, sæpe
6- 3-aristulata. Palea floris tabescends minima, tri-v. bi-fida. Palea interna (floris perfecti) paulo brevior palea-externa (hujus
aristulis prætermissis), membranacea, hyalina, lineari-oblonga, retusa, mutica, exaristata, carinato-binervia (carinis immar-
ginads, dorso obtusis, ciliolatis), lateribus inde a nervis iuflexa, marginibus ciliata, dorso’ad partes inflexas puberula, reliquo
glabra, basi angustata. Squamulæ-hypogynæ minimæ, glaberrimæ, carnulosæ, persistentes, cunéiformes, apice truncato v.
rotundato haud raro irregulariter rétusæ. A ntheræ minimæ, cordato-ellipticæ, obtuse emarginatæ. Pistillum sub antbesi
examinare non licuit. Caryopsis minima (1/2 lineam Ionga), inadhærens, inclusa, palea interna brevior, oblonga, obtusa,
subteres, brunnea, lævigata, glaberrima, sdpitulata, plerumque stigmatum reliquiis bimucronulata, facie supra basin foveola
minuta notata, esulca. Embryo perispermio paulo brevior, circumscriptione oblongus.- [Exam. s. sp>) 1
(1) In speciminibus nobis obviis spiculæ etiam adsunt in axillis vaginarum radicalium solitariæ, quod verisimiliter tarnen
pro statu plantæ anomàlo habendum.