154 
longi, laciniis semilanceolato-subulatis. Phalanges 7-10" longs, 
unguibus circa 1" latis. Semina glabra, fertilia et sterilia sat 
conformia, cireiter 3 longa, subclavata, truncata, angulata ; 
sterilia livida ; fertilia fusca. 
CourosiTE. 
Pachysurus ervoides. 
Caulibus ramisque araneosis, foliis magnis subovatis rhombeisve 
herbaceis inferioribus longe petiolatis omnibus araneoso-tomentellis 
glabrescentibus, glomerulis fere globosis ovatisve interrupte et 
dissite spicatis quasi panieulam struentibus, eapitulis plerisque 
sex-floris, involucri specialis squamis exappendiculatis exterioribus 
dense lanosis, pappi setis plurimis in lanam intricatam arcte 
coherentibus. 
Ad portum Gregorii. A. Oldfield. . 
Herba annua, pedalis v. altior, patentim ramosa, 7Ervz habitu. 
Folia 2-11" longa, szpe crispata ; superiora glomerulos fulcrantia, 
minora et brevius petiolata. QGlomeruli 1—3" metientes; plures 
superiores confluentes.  Involucri specialis squam:e interiores 
hyalinz, l-nerves, glabrz, 1j" longs, state truncat; et brevis- 
sime bilobe.  Corolle cireiter 11" longe ; tubus tenuissimus, basi 
haud insigniter inerassatus.  Achenia oblongo-clavata, 3^ vix 
longiora, glanduloso-scabridula.  Pappus albidus. 
Pachysurus platycephalus. 
Caulibus ramisque tomentosis, folis linearibus v. oblongo- 
linearibus glabrescentibus v. tomentellis, glomerulis terminalibus 
depresso- v. lobato-globosis, capitulis 13-20-floris, receptaculo 
generali depresso, involueri specialis squamis lamina brevi semi- 
ovata eitrina radiantibus exterioribus dense lanosis, papp? setis 
7-8, longitudinaliter ramelloso-plumosis apice penicellatis. 
Ad flumen Darling ; Goodwin. Ad montes Barrier Range ; 
Beckler. Ad sinum Spencer's Gulf ; Warburton. 
Herba erecta, pedalis v. humilior. Folia 1-3" longa, alterna, 
sat copiosa. Glomeruli in apice ramorum nunc solitarii, nunc 
plures dense conglobati, 3-13" lati. Involueri specialis squamae 
interiores glabre, 11" longs, uninerves, fere oblongsz, preter 
apicem hyalinz. Corolla fere lineam longa, tubo gracillimo basi 
dilatato. Achenia 1-1" longa, ellipsoidea, pallida, subtiliter sca- 
briuseula. Pappus albus, corollam zquans, setis interdum inferne 
nudiusculis. 
. P. muliflorus (Turez. Bullet. Mose. 1850) imperfecte descriptus 
huie apparet surimopere aftlinis. 
