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556
striata, nervis submarginalibus paullulum incrassatis, aciebus obtusis
v. saltem obtusiusculis, in vaginam abeuntia quartam, y. tertiam
fere partem folii occupantem, superne lamina haud latiorem ligula
nulla munitam, superne sordide viridem v. vinoso-purpurascentem,
transverse rugulosam, opacam, marginibus fulvescente-subhyalinam,
vulgo omnino eciliatam, inferne (ima basi valde) dilatatam,
ferrugi-neara et subopacam, vulgo pilis fulvescentibus longis ciliatam.
Scapi subteretes, vulgo 30—40 cm alti, 0,o—1 mm crassi, læves
glaberrimique, nonnihil nervoso-striati, inferne fulvi, ferruginascentes
v. ferrugineo-castanei, basi vagina circumdati arcta, vulgo 6 —10 cm,
rarius usque 12 cm longa, in apiculum brevem obtusiusculuin, sæpe,
incurvatum excurrente, superne sordide viridi et minute tuberculata v.
transverse rugulosa, inferne ferruginascente v. dilute castanea,
læviniti-daque. Spica satis multiflora, obovoidea (junior
obovoideo-fusifor-mis), 5—8 mm longa, 3—5 mm, rarius usque 6 mm crassa; bracteæ
infimæ ovales, vulgo 3,5—4,5 mm longæ, 2,s—3 mm latæ, apice
rotundatæ subcoriaceæ, albidæ v. stramineæ, marginibus tenuiores et
subhyalinæ, sub apice sæpe leviter carinatæ, intermediæ
obovato-ovales, 5—7 mm longæ, 3,5—4 mm latæ, nonnihil coehleatæ, apice
rotundatæ, membranaceæ v. saltem submembranaceæ,
subhyalino-albidæ v. dilute stramineæ, apice sæpe roseo-purpurascentes, læves,
subnitidæ, integerrimæ, eciliatæ, sub apice sæpe carinatæ, area
dor-sali nulla. Sepala lateralia, libera, æquilatera, fere recta, lanceolata,
5—7 mm. longa, circiter 1 mm lata, acuta, subhyalina, dorso
stra-minea, a])ice sæpe roseo-purpurascentia, ala cannali satis angusta,
in partibus tertiis infima mediaque pilis brevissimis satis raris
ciliato-scabridula. Petala lutea, lamina obovato-suborbiculari, 4—5 mm
longa, apice serrato-lacerata, basi låte cuneata, ungui lineari, usque
5 mm. longo, circiter 0,6 mm läto. Staminodia bibrachiata, brachiis
longe penicillatis (pilis superne moniliformibus). Anlheræ
sublinea-res, circiter 1,5 mm longæ, connectivo angusto, filamento sublineari,
dimidiam partem antlieræ æquante v. paullulo longiore. Ovarium
uniloculare, placentis parietalibus, basi haud conlluentibus; ovula
numerosa, funiculis brevibus aflixa; stylus usque ad medium
trifi-dus; stigmata flabellato-lacerata.
■ Nordwest-Rhodesia: Zwischen Bröken Hill und Chirukutu, auf
feuchtem grasigem Platze, 10. Aug. 1911 (n. 296).
Durch die hellen Brakteen der Ähre und die quer runzeligen
Blätter erinnert diese Spezies einigermassen an X. straminea Alb.
Nilss., unterscheidet sich aber schon durch den ziemlich breiten,
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