Fragmenta phytographiæ Australiæ /contulit Ferdinandus Mueller.

233
viores. Spie« in speciminibus exstantibus paucilineares, forsan
saspe majores. Bracteolag vix lineam longas, hyalinse. Sépala
acuta, villis fere supérala. Filamenta calycis medium vix atti-
nentia, basi breviter connata, abhinc tenuiter subulato-linearia.
Anthem $' longa?; loculi primum contigui, demum basi soluti,
scilicet introrsum dehiscentes. Stylus glaber, tenerrimus. Stigma
indivisum. Fructus sequilaterus, fere rotundus, compressiusculus,
§ metiens. Semen ut in aliis verticale.
Varietatem forsan hujus speciei lanuginosam, spicis f" longis, in
Australia boreali-occidentali interiore detexi.
Ptilotus astrolasius.
Fruticulosus, ramosus, stellari-tomentosus, foliis rhombeo- v.
spalulato-ovatis, capitulis terminalibus solitariis semiovatis v. fere
sphíericis sessilibus, bracteoiis calycem semiasquantibus bractea vix
longioribus quacum cymbeo-ovatis extusque pilosulis, calyce parvo
villosulo-sericeo, villis brevibus l•vibus imperfecte articulatis,
staminibus calycem smisequantibus, stylo capillari breviusculo
terminali, fructu glabro equilátero.
Ad rivum Sturt's Creek. F. M.
Folia ¿-§" longa, in petiolum sesquilinearem vel breviorem
abeuntia, mutica, utrinque tenui-tomentosa. Capitula saepe semi-
pollicaria. Bracteee et bracteolae lineam vix excedentes. Sépala
exteriora fere lanceolata, acutiuscula; interiora paulo angustiora
et infra medium intus barbata. Filamenta superne capillaria,
inferne paulo applanata. Antherarum loculi pertenues, saltern
inferne demum soluti. Stylus fere lineam longus. Stigma indi-
visum. Fructus maturus ignotus.
Fructum inaequilateralem et stylum magis minusve lateralem pr•-
bent : Ptilotus alopecuroides, P. Beckeri, P. nobilis, P. pachoce-
phalus, P. erubescens, P. disians, P. Lindleyi (Trichinium lanatum
Lindl.) P. incanus, P. obovatus, P. spatulatus, P. hemisteirus, P.
polystachyus, P. Manglesii, P. divaricatus, P. parvifolius, P. holo-
sericeus. Fructum sequilateralem et stylum rite terminalem osten-
dunt : P. gracilis, P. calostachyus, P. helipteroides, P. arthrolasius,
P. astrolasius, P. corymbosus, P. gomphrenoides, P. aervoides, P.
macrotrichus, P. latifolius, P. helipteroides, P. grandiflorus, P.
floribundus, P. rotundifblius, P. Drummondi, P. humilis, P. pyra-
midatus. Calycem intus supra basim conferte lanoso-barbatum ex-
hibent : P. nobilis, P. erubesceus, P. calostachyus, P. corymbosus,
P. helipteroides, P. hemisteirus, P. polystachyus, P. floribundus,
P. rotundifolius, P. Manglesii, P. Drummondi, P. divaricatus, P.
parvifolius, P. holosericeus. Calycem intus villosulum v. glabri-
usculum haud definite barbatum habent: P. alopecuroides, P.
Beckeri, P. pachocephalus, P. distans, P. gracilis, P. Lindleyi, P.
incanus, P. obovatus, P. spatulatus, P. helichrysoides, P. gomphre-
VOL. vi. 2 K