Fragmenta phytographiæ Australiæ /contulit Ferdinandus Mueller.
Fragmenta phytographiæ Australiæ /contulit Ferdinandus Mueller.
Fragmenta phytographiæ Australiæ /contulit Ferdinandus Mueller.
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231<br />
Ptiloíus calostachyus.<br />
Arthrotrichum calostachyum, F. M. in Transact. Botan. Soc. Edinb.<br />
vii. 500.<br />
Foliis linearibus ramisque glabris, spicis conico-cylindricis tcr-<br />
minalibus solitariis, bracteis bracteolisqiie ovatis acutiusculis fere<br />
glabris trientem v. dimidium calycis a?quantibus, sepalis brevius-<br />
culis extus ápice tenus villosis, villis persubtilibus laevibus remoti-<br />
uscule nodosis, staminibus fertilibus calycem semia?quantibus,<br />
filamentis capillari-setaceis, antheris ovatis, stylo breviusculo<br />
glabro.<br />
Ad fluminis Victoria? partem siiperiorem nec non ad rivos<br />
Hooker's et Sturt's Creek ; F. M. Ad sinum Nichol's Bay ; P.<br />
"Walcott. Ad portum Roebuck-Bay ; J. Martin.<br />
Planta pulchella, tripedalis v. humilior, gracilis, erecta, pauci-<br />
ramea. Folia exceptis superioribus 1-1 J* longa, |-1'" lata. Spica?<br />
primum ¡§-1" demum 1-2" longa?. Bractea? et bracteola? deco-<br />
lores, 1-1 g"' longa?, fere enerves. Sépala pallide rosea, indumento<br />
albido permolli, interiora intus inferne barbata. Stamina basi in<br />
cyathulum fimbriolatum coalita. Anthera? flava?, i/" longa?, bilo-<br />
culares, loculis haud disjunctis. Stylus capillaris, 1"' longus.<br />
Stigma capitellatum. Germinis apex barbellatus. Fructus matu-<br />
rus ignotus. Omnes anthera? me prius examini subjecta? haud<br />
fertiles erant, quod in hac specie frequenter accidit.<br />
JPtilotus helichrysoides (Psilotrichum heliehrysoides, F. M.<br />
Fragm. i. 237) in genera quidem satis anomalus videtur, sed vix<br />
excludendus. Bractea bracteolis fere conformis. Sépala etiam<br />
interiora intus imberbia. Villi confertissimi, sat breves, remote et<br />
indistincte articulati, la?ves. Stamina calyci aequilonga v. eo<br />
dimidio breviora, glabra. Germen dense tomentosum. Stigma<br />
paulo emarginatum. Adest quoque in collectione Drummondi.<br />
Ptilotus hemisteirus (F. M. Fragm. iv. 90; Trichinium corym-<br />
bosum, Gaudich. Voy. Uran, et Phys. Bot. 444 non Sprengel ;<br />
Hemisteirus psilotrichoides, F. M. in Linna?axxv. 435) vestimento<br />
sepalorum dorsali brevi valde insignis est. Villi laeves, remote<br />
articulati. Plantam nunc ab Elder's Range, Lake Gardner, Lake<br />
Gilles, Blackwood-River, Sharks-Bay et Hammersley-Range nota-<br />
vimus, et futuro tempore e permultis locis interjacentibus obtine-<br />
bimus. Caulis interdum occurrit monocephalus.<br />
Ptilotus •rvoides (Trichinium •rvoides, F. M. Fragm. iii. 123)<br />
villis sepalorum flavidis brevissime articulatis conspicue denticu-<br />
latis ornatus est.<br />
Ptilotus helipteroides (Trichinium helipteroides, F. M. Fragm.<br />
iii. 122; T. brachytrichum, F. M. 1. c. 161) gaudet bracteis brac-<br />
teolisque enerviis, villis sepalorum breviuscule articulatis hevibus,<br />
stylo fere sesquilineari. Huic P. lepidus et P. grandiflorus proximo<br />
cognati sunt.