Inuloidec.] LXXXVIII. COMPOSITZE. 289 
sime bifidus, superne incrassatus. Ach:nia ovoidea, leviter costata. Pappus 0.—Arbus- 
cule tomentoss. Folia alterna, integra v. apice lobata, crassiuscula, insigniter areolata. 
Capitula parva, sessilia v. breviter pedunculata, in paniculas axillares v. amplas termi- 
nalesque conferta. Corolle 5 parce, 9 densius, hirsuto-lanatz.  Achsnia lana longa 
nunc densissima nunc tenuiore involuta. Styli fl. ? rami breves, latiusculi. 
Species 3, Africze australis incole. —Harv. et Sond. Fl. Cap. iii. 117. — Lam. Illustr. t. 671. 
In Zürchonantlis typicis folia integerrima, panieule terminales, capitula 9 oo-flora, involueri 
braetem latz, achzenia densissime lanata. In T. frilobo, sectionem Henotogynam, DC., constituente, 
folia cuneata rugosissima apice 3—ó5-fida, panieule axillares, capitula 9 1-flora, involueri braetese 
anguste, achznia laxe villoso-lanata. 
170. Stenacheenium, JBenth. gen. nov.—Capitula heterogama, disciformia, floribus 
in ambitu co-seriatis 9 discique 0 fertilibus. Involucrum campanulatum, bracteis 
co-seriatis imbricatis angustis acutis margine scariosis dorso hirsutis, exterioribus gradatim 
brevioribus. Receptaculum planum, foveolato-fimbrilliferum. ' Corollz regulares, tenues, 
tubuloss, limbo apice 5-fido, lobis erectis, 9 filiformes, i paullo ampliati. Anthere 
basi sagittatze, auriculis contiguis connatis longe tenuiterque subciliato-caudatis. Styli fl. 
i rami lineares, complanati, acutiusculi, dorso hirti. Achzeniasubteretia v. 4-b-angulata, 
elongata, angusta, apice parum attenuata, 8-10-costata.  Pappi sete copioss, sub- 
2-seriatz, longse, rigidule, serrulatz, subsequales v. exterioribus paucis pluribusve 
abbreviatis.—Herba perennis v. basi sublignosa, pubescens y. molliter hirsuta. Folia 
infima conferta subspathulata, caulina pauca angustiora decurrentia, omnia integerrima 
v. paucidentata, Capitula majuscula, ad apicem caulis simplicis v. parce ramosi soli- 
taria. v. pauca, pedunculata v. confertim subcorymbosa.  Achsnia glabra v. breviter 
Species 2 (v. 3), Brasiliw incole. —Pluchea macrocephala, DC. Prod. v. 450 (Conyza megapotamica, 
Spreng.), et species nova Riedeliana in Herb. Acad. Petrop. (Genus a P/uchea. differt habitu, invo- 
lucro, stylo, achzniis et pappo, et inter Plucheineas achzeniis elongatis insigne. 
171. Blumea, DC. in Guillem. Arch. Bot. ii. 514 ; Prod. v. 432. (Conyza, Sch. Bip. in 
Walp. Hep. ii. 903, pro parte, nom Less.).—Capitula heterogama, disciformia, floribus 
in ambitu Q oo-seriatis fertilibus, disci tj ssepius paucis fertilibus v. rarius sterilibus. 
Involuerum ovoideum v. campanulatum, bracteis oo-seriatis imbricatis angustis acutis 
herbaceis. v. mollibus, exterioribus gradatim minoribus. Receptaculum planum, 
nudum. Corolle 9 filiformes, minute 2—3-dentats, stylo suo breviores; D regulares, 
tubuloss, tenues, limbo parum ampliato D-dentato. Antherz basi sapgitiales, auriculis 
swpius parvis connatis plus minus tenuiter caudato-acuminatis. Styli fl. D rami 
anguste complanati v. fere filiformes, obtusi v. acutiusculi, dorso papillosi (rarius in 
stylum indivisum connati?)  Ach:smnia parva, subteretia v. angulàáta, costis prominulis 
. striata. Pappi setz tenues, l-seriate, ssepius caducs.— Herb: annus v. perennes, 
rarius basi frutescentes, glanduloso-pubescentes villosee v. sublanatz. Folia alterna, 
dentata lobata v. rarius integerrima, sessilia v. petiolata, rarius in caulem unie 
Capitula mediocria v. parvula, rarius majuseula, in paniculas terminales oblong: 
pyramidatas nunc fere in glomerulos contractas disposita, rarius in ramis laxis solitaria. 
Corollee purpurascentes rose&e v. rarius flavsee. — Achsenia glabra v, pilosa. 
Species ab auctoribus enumeratz ad 110, Asiz Afriez Australieque regionum ealidiorum incol:, 
plurim: tamen form: in agris ad vias etc. vulgatissimze, potius varietates estimand: et forte vix 60 
species retinendz. JDC. Prod. v. 433; vii. 283. — .Walp. Rep. vi. 138 et 971 (Conyea) ; Ann. i. 410; 
ii. 839; v. 198. Mig. Fl. Ind. Bat. ii. 40. (sect. Conyze). Benth. Fl. Austral. ii. 024. — Deless. Ic. 
Sel. iv. t. 25. Wight lc. i. 1099. Seem. Fl. Vit. t. 27.  Belang. Pl. Ind. Or. Ic. 
" Genus Conyze affine, distinguitur achzniorum forma et ànthéris tenuiter (interdum brevissime) 
eaudato-aurieulatis, a P/uchea minus definite separatur habitu inflorescentia et involuero; flores 5j 
. etiam sepius fertiles videntur, dum in Pluchea plerumque steriles evadunt ; hie tamen character ob. 
achsznia rarius in speeiminibus matura nobis incertus. est. Stylus florum 6 in Zlwmea semper 
bifidus videtur, in Pluchea spe indivisus, i 
'vOL. IIl. t5 U 
