291 
2"' longo; omnia trisect, a, segmenta lineari - oblonga, utrinqiie acuta, 8" lon^a, 
ad summuni 1,2"' lata, membranacea, subtus pallida, margine revoluta, (7m- 
bellae axillares, inferiores brevius pedunculatae, pedunculo lineam loimo, 
superiores in pedunculo 4 -lineari nutantes, in uno eodemque specimine 1-et 
3-florae. Involucri involucellique foliola in unifloris 3-, in trifloris (j-linearia 
flores supeyantia, pilis longis nitidis subplumosis ciliata. Fructus apicem 
versus hispiduli. Stylopodia majuscula villosa. Juga in quovis mericarpia 
5, nerviforniia , baud proininula. 
2. Xantliosfa pusilla Bge. herbacea; caulibus adscen- 
dentibus dense hirsutis demuin glabratis, foliis petiolatis 
trisectis; segmentis oblongis basi attenuatis acutis obsolete 
dentatis ciliatis ; ciliis demum evanidis, umbellis axillaribus 
sessilibus 1-2-floris erectis, calycis laciniis lanceolatis acu- 
miuatis, mericarpiis quinquejugis. 
In arenosis humidis umbrosisque ad fiuvium* King’s -River, Piantagenet, 14. Oct. 
1840. Herb. Preiss. No. 2078. 
Planta pusilla, vix bipollicaris ; radix simplex, perennis (?) alte descen- 
dens; caules primarii erectiusculi, glabrati, rigid! steriles, laterales breviores 
adscendentes , hirsuti. Folia ima ad petiolum dilatatum, ovatum, amplexi- 
caulem redacta, interdum apice tridentata; superiora petiolata, petiolo 2" 
parum excedente, trisecta, segmenta coriacea, lineari- oblonga, acuta, basi 
cuneata, juniora margine ciliata, demum glabrata, ciliorum basibus persistenti- 
bus denticulata, ad summum 4" longa, lineam lata. Flores solitarii vel ge- 
mini in axillis subsessiles, erecti; involucri foliola 3, flores superantia. Ca- 
lt/cis laciniae angustiores longiores quam in praecedente. Fructus omnino 
praecedentis, sed parum angustior. 
Sect. 2. Euxanthosia. Involucri foliola parva herbacea 
vel membranacea; fructus multijugi. 
3. Xantliosla Miigelli Stead, canescenti-hirta, caulibus 
erectis, foliis trisectis , segmentis linearibus subintegerrimis 
margine revolutis subtus tomentosis, umbellis nutantibus sub- 
quinquefidis , umbellulis bifloris, involucro involucellisque 
2-3 - phyllis, foliolis lanceolato-linearibus fructum multijuga- 
tum apice liispidum superantibus. — Benth. in Endl. Enum. 
plant. Huge!, pag. 55. sub Leucolaena. 
In arenosis umbrosis sylvae prope Jacum Mongerslake , Perth , 4. Oct. 1839. 
Herb. Preiss. No. 2090. 
4. Xaiitliosin Candida Stead, caulibus demum glabratis 
procumbentibus ereetisve, foliis ovatis oblongisve grosse 
et acute dentatis junioribus subtus niveo- tomentosis, umbel- 
lis breviter pedunculatis nutantHius subquinqueradiatis, in- 
volucro 2-3-phyllo, umbellulis unifloris, media sessili exin- 
Vplucell^ta caeterorum involucello dipliyllo, foliolis oblongis 
fructum multijugatum puberulum superantibus. — Benth. in 
Endl. Enumerat. plant. Huge!: pag. 55. sub Leucolaenci. 
a, prostrata. 
In limosis scaturiginosis clivuli inter frutices prope praediura rusticum cl. P. 
Brown, ad fl. Cygnorum, 22. Nov. 1839. Herb. Preiss. No. 2088. 
19 * 
