DESC.  Frutex facie fere Cassiae et Labicheae.  Folia alterna, cum impari pinnata, foliolis alternis brevissime petiolatis oblongolanceolatis cum mucronulo terminali paulo majore.  Stipulae parvae caducae.  Racemi pauciflori, axillares, folio breviores.  Alabastrum ovali-oblongum acutiusculum.  Calyx viridis, sepalis subaequalibus oblongis acutis, aestivatione imbricatis.  Petala quinque subaequalia, oblonga, flava aestivatione imbricata, sepalis sesquilongiora.  Stamina 3 antherifera aequalia, filamentis abbreviatis, antheris acutis bilocularibus, loculis sulco longitudinali insculptis; 2 reliqua rudimenta parva subfiliformia.  Ovarium sessile, lineare, 3-4-spermum.  Stylus lobo medio triplo longiore, oblongo-lanceolato, lobis lateralibus auriculiformibus semiovatis obtusis.  Stigma imberbe.

OBS.  The structure of the style, which forms the only important character of this genus, so far as the specimens enable me to judge, is so remarkable and peculiar, as to render it necessary to state, that I have found it quite uniform in all the flowers I have examined; namely, in four immediately before, and in three after expansion.

PODOCOMA.

Char.  Gen.—­Involucrum imbricatum, foliolis angustis acutis.  Liguloe pluriseriales, angustissimae, femineae.  Flosculi pauciores hermaphrodito-masculi.  Ligularum pappo capillari, stipitato, denticulato.  Receptaculum epaleatum.

Herba humilis, setosa; caule dense, foliato; folia petiolata, cuneata, incisa, setis albis conspersa.

14.  PODOCOMA cuneifolia.

LOC.  In Herbario D. Sturt absque ulla indicatione loci vel stationis.

OBS.  This plant appears to be generically distinct from Erigeron, particularly in its stipitate pappus.  The specimens, however, are so incomplete, that I am unable to determine whether what I have considered stem, may not be a branch only.

LEICHARDTIA.

Char.  Gen.—­Calyx 5-partitus.  Corolla urceolata; tubo intus imberbi; fauce annulo integerrimo incrassata.  Corona staminea 5-phylla, foliolis antheris oppositis, iisque brevioribus, indivisis.  Antheroe membrana (brevi) terminatae.  Massoe Pollinis erectae basi affixae.  Stigma vix divisum.

Suffrutex volubilis; foliis linearibus, fascicularibus, extraalaribus; folliculis ventricosis ovato-oblongis.

15.  LEICHHARDTIA australis.

Doubah Mitchell, trop.  Austr. p. 85.

LOC.  “Common on the Murray and in the interior.”  D. Sturt.

DESC.  Suffrutex pubescens, subcinereus; ramis striatisnec omnino teretibus.  Folia sesquipollicaria, linearia, acuta.  Fasciculi multiflori.  Calycis foliola obtusa, pube tenui cinerascentia.  Corolla glabra; tubo absque squamulis denticulisve, ventricoso; limbovix longitudine tubi, laciniis conniventibus sinistrorsum imbricatis.  Coronae foliola e basi dilatata adnata linearia, indivisa.  Massae Pollinis (Pollinia) lineares.