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Fragmenta phytographiæ Australiæ /contulit Ferdinandus Mueller.

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232<br />

PtUotiis macrotrichus (F. M. Fragm. iv. 90) inter plantas sextae<br />

collectionis Drummondi sub 222 a fluvio Murcbisoni exstat. Villi<br />

sepalorum edentuli. Pericarpium lseve, nitidum, mox fulvidum.<br />

Forsan ad hancce plantarn pertinet species ex archipelago Dam-<br />

pierii a Wickbam et Stokes allata.<br />

Ptilotus latifolius (Br. in Start's Central Australia ii. App. 88)<br />

a P. macrotricho discernitur lanugine ramorum densiore, foliis<br />

latioribus s•pe longe petiolatis, bractea bracteolis et calyce major-<br />

ibus, sepalis lanugine involvente longioribus mox in unguem<br />

longiusculum apterum attenuatis non penicillari-villosis, stylo<br />

paulo • longiore. In clivis arenosis ad Wills-Creek, nionentibus<br />

Howitt et Murray, altitudinem 2' attinet.<br />

Ptilotus c•spitulosus.<br />

Caulibus crebre ramosis repentibus, foliis parvis glabris subu-<br />

lato-linearibus mucronulatis itiferioribus in c•spitulum conjertis,<br />

capitulis terminalibus solitariis paene semiovatis, bracteolis fere<br />

rotundis acutiusculis calycem vix semiaequantibus bractea; orbicu-<br />

lari-ovatas acuminatas glabras fere asquilongis, sepalis breviusculis<br />

apicem versus nudis, villis sepalorem crebre denticulato-nodosis,<br />

antheris ovalibus, filamentis perbrevibus inasqualibus apice capil-<br />

laribus, stylo sepalis pluries superato glabro.<br />

In Australia occidentali ; Drummond, 189.<br />

Planta liabitu congeneribus aliena, Laxmannias facie. Rhizoma<br />

perenne, teretiusculuin, procurrens. Ramuli breves, conferti, foliosi.<br />

Folia semipollicaria v. breviora, saspe curvata, inferiora fasciculata<br />

et basi paulo incrassata. Rami floriferi fere digitales, foliis saltern<br />

ex parte sparsis prasditi. Capitula vix semipollicaria. Bracteas et<br />

bracteolas fere 2'" longos. Sépala circiter 4'" longa, inferne margine<br />

tenus villosula, superne flavido-pallescentia, apice obtusiuscula.<br />

Articuli villorum saspe diámetro vix ter breviores. Stamina 2<br />

vidi fertilia. Antlieras \'" longas, fuscas. Stylus vix lineam me-<br />

tiens. Fructus ienotus.<br />

Ptilotus arthrolasius.<br />

Ramosus, filis articulatis crispulis pubescens, foliis oblongo-<br />

lanceolatis muticis, spicis capitatis f'ere ovatis solitariis terminali-<br />

bus breviter pedunculatis,bracteolis ovato-rotundis brevi-acuminatis<br />

enervas fere glabris bracteam ovatam acutam inferne pilosulam<br />

asquantibus, calyce parvo bracteolas •quante penicillari-villoso,<br />

villis lasvibus remotiuscule articulatis, antberis cordato-ovatis,<br />

stylo perbrevi.<br />

Ad rivum Sturt's Creek. F. M.<br />

Indumentum breve, fulvescens. Folia circiter pollicem longa,<br />

in petiolum brevem angustata. Pedunculi semipollicares vel bre-

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