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Fragmenta phytographiæ Australiæ /contulit Ferdinandus Mueller.

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88<br />

Amicus prasdoctus Th. Anderson in dissertatione sua eximia<br />

de Acanthaceis Indicis (Journal of the Linnean Society 1867,<br />

425-526), dum genera e materiis ditissimis refudit, in Hygrophilis<br />

stamina tam duo quam quatuor adraisit. Secundum eandem nor-<br />

mam nunc genus Earliae supprimo. Soliditas tamen capsula basalis<br />

nostram plantam in cohortem Justiciearum movit. Ceterum stirps<br />

nostra eodem jure ad Thyrsacanthum, adspectu haud dissimilem<br />

trahi possit, etiamsi Thyrsacanthus Indicus locum inter Asystasias<br />

bene accepit. Dispositio Acanthacearum totius mundi, quam<br />

Neesius verbis admodum elegantibus logicisque efficit, si materias<br />

viro lucido et sedulissimo offertas contemplavimus, semper miranda<br />

manet.<br />

A Nelsonia campestri (Br. Pr. 480; Endl. Iconogr. 79), quae in<br />

Australia septentrional! haud infrequens, Nelsoniam tomentosam<br />

fortasse haud spécifiée removeré possumus.<br />

Ebermaiera glauca (Nées in Cand. Prodr. xi. 73) viget in<br />

terra Arnhemica.<br />

Hygrophila angnetifolia obvenit per magnam Australia) orientalis<br />

partem.<br />

Dicliptera armata.<br />

Herbácea, foliis angnsto- v. lineari-lanceolatisbreviter petiolatis,<br />

umbellis verticiilato-capitatis, bracteis basalibus lineari-subulatis<br />

pungentibus, valvaribus rotundo-rhombeis mucronato-acuminatis,<br />

Capsula disperma, seminibus lasvibus.<br />

Ad originem fluvü Victorias, nee non ad rivum Stirling's Creek ;<br />

F. M. Ad flumen Glenelg's River ; J. Martin (46).<br />

Herba forsan annua, pluripedalis, debilis, erecta. Radix albida,<br />

contorta v. flexuosa, fibrillas longas tonuissimas producens. Caulis<br />

opposite ramosus, cum ramis prominule sexangulatus, lasvis, glaber,<br />

basi interdum procumbens et radicans. Folia in geniculis opposita,<br />

teñera, saltern basin versus cum petiolis pilosula, 1-3" longa,<br />

2-6" lata, margine scabriuscula. Umbellae composite fasciculares,<br />

axillares et terminales ; interiores breviter, exteriores brevissime<br />

peduneulatas, bracteis usque ad 4'" longis patentissimis armatas.<br />

Umbellulas bracteis 2 valvaribus involucellatae, binas usque quinas,<br />

subsessiles, uni-trifloras, flore único tantum evoluto, secundo<br />

tertioque rudimentoriis, rarissime perfectis. Bracteas involucellum<br />

constituentes appressas, planiusculas, 4-6"' metientes, venis anasto-<br />

mosantibus percursas, uninerviae, extus glandulis consperssö et<br />

brevissime pubescentes, intus fere glabras, margine parce ciliatas.<br />

Calyx 5-partitus, breve et dense glanduloso-pubescens, 1|" longus,<br />

brevissime pedicellatus, basi bibracteolatus ; lacinias erectas, lineari-<br />

subulatas ; Ínfima paulo major. Bracteolas lineari-setaceas, linea<br />

breviores. Corolla saturatius rosea, torsione resupinata, bilabiata;<br />

labium resupinatione superum adscendeus, semipollicare, 3 '" latum,<br />

fere ovatum, inferne sensim angustatum, apice recurvum et breviter

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