166 THE CAMEL FODDER-PLANTS OF WESTERN AUSTRALIA. 



in sicco cinerea et erecta, Integra, paria infima sepius plus minusve 

 abortiva, omnia glandulis parvis fuscis prsedita. Capitula vix 

 1-0 cm. diam., usque 1-0 cm. long. Involucri squamse extim® 

 abbreviatfe, circa 0-3 cm. long. ; medianae extimas duplo exce- 

 dentes ; intimre 0-7 cm. long, earum Limina petaloidea 0-15- 

 0-25 cm. long., reflexa vel plus minus patens. Flosculi citrini. 

 Corollffi tenues, 0-4 cm. long. Autberarum caudfe tenuissim^. 

 Acbenia oblonga, longe villosa, 0-2 cm. long. Pappi seta? corollas 

 excedentes, 05 cm. long., subrigidas, fequaliter plumulosa?, lacteae. 

 This plant is remarkable for its opposite leaves ; its affinity 

 would seem to be with R. strictum Bth., but, besides the difference 

 in the insertion of the leaves, the heads of the new species are 

 differently shaped, being relatively broader; and they also have a 

 larger number of florets. The involucral bracts, too, are difterent, 

 and much thinner in consistence ; and their petaloid laminae are 

 yellow, and not white. The tails of the anthers are very slender, 

 so much so that the compound microscope alone can do justice to 

 them. 



39. H. (§ Pteropogon) Zacchseus, sp. nov. Ascendens, pu- 

 sillum, laxe villosulum, foliis parvis anguste linearibus mucronulatis 

 usque ad capitulas confertis, capitulis parvis subcorymbosis oblongis 

 paucifloris, involucri squamis externis late oblongo-obtusis omnino 

 hyalinis tenuibus, ceteris lamina parva deltoideo-ovata obtusissima 

 Integra virescente vel citrino-virescente coronatis, acheniis papillosis, 

 pappi setis 10 acheniis subaequilongis dense phimosis. 



Hab. Juxta Coolgardie repperi mens. Aug. 



Planta 2-0-2-5 cm. alt., a basi ramosa. Radix macer, simplex, 

 sinuosus, usque 2-0 cm. long. Piami patentes, graciles, una cum 

 foliis praesertim sursum piloso-villosuli. Folia pleraque 0"3-0'4 cm. 

 long., alterna, inferiora interdum subopposita, sessilia. Capitula 

 vix 0-5 cm. long., 0-25-0-3 cm. lat. Involucri squamae externa 

 0-2 cm. long. ; medianae externis duplo longiores. Flosculi 6 

 aliqui interdum steriles. Corollae graciles, pappo subaequilongfe. 

 Achenia 0'16 cm. lat., 0-12 cm. long., prater papillas paucas parvas 

 omnino glabra. Pappi set^e albid^e, 0-15 cm. long., aequaliter 

 plumosfe. 



A species allied to H. jnjgmccum. Bth., of which it has much the 

 habit ; but the heads are different in several respects, being rela- 

 tively broader and much shorter, and the inner involucral scales 

 have greenish and not white tips. Moreover, the achenes of 

 H. pycjnmum are densely villous, and the pappus-hairs much 

 elongated. 



40. CephaHptcrum. Brummondii A. Gray. Common in the Cool- 

 gardie district in Aug. 



41. HeUchrysum semipapposum Bth. Gnarlbine Piock, Nov. 



42. Athrixia tenella Bth. Common near Coolgardie in spring- 

 time. 



A3. Senecio vuh/aris L. A eommou weed round Coolgardie in 

 the spring. 



