40 ICONES PLANTARUM. 
Folia opposita, oe exacte oblo nga, basi et apice aoe ata, 2-3 poll. 
villosa, Cyme@ axillares, peloreuiatr ka -chotomee, ramosee, folio dimidio 
breviores v. equilonge, ‘pedunculo 4 4-]2 poll. longo stricto. Flores pedi- 
cellati, albi, bracteati, 3 $ poll. longi, sire albi, intus rosei, 4—-5-meri. F’ruc- 
tus obovoideo-clavatus, + poll. longus, lignosus, calycis tubo medio cinctus, 
vertice tumido apicu culato, maturns 8-parti rtibilis. Semina oblonga, obtuse 3- 
gona, testa coriacea niti . Hooker. 
Fig. 1. Flower. 2. Vaden section of ditto. 3. Stamen. 4. Transverse section of 
tae ae magnified. 
Puate 1053. 
PETROBIUM ARBOREUM, By. 
Composit#, § SENECIONIDES. 
P. arte sag: Br. in ae Trans. xii. 113.—Laxmannia arborea, Forst. 
omm. Geett. ix. 56; Gen. t.47. Spilanthes tetrandra a vs oe et Bidens 
arborea ie ). Roxb. in Beatson’ s St. Helena Tracts, 301 et 
Has. St. Helena, Diana’s Peak, Harding’s Spring, etc., Burchell, 
onsturt in January and May. “ Whitewood Cabbage-tree”’ of the peru 
or parva, dioica, 10—15- pedalis, ligno molli. Rami tortuosi, ¢ cicatricati, 
tun ata v. tron ate 9 tial tata, acuta bacuta, ultra medium 
serrata, in plantis saat (ex ply Burchellii) folia latiora basi seepius 
truncata, in feemineis angustiora et in petiolum angustata. Panicule axil- 
lares v. terminales, 3-chotome ramose. Capitula erecta, flava, eampanulata, 
pedunculata, 3 poll. longa, mascula latiora. Involucri foliola sub-3- serialia, 
oblonga, obtusa, gla riuscula, coriacea, integerrima. Receptaculum paulo 
TUM voll 
longum, szepius 3-setosum, setis abate Corolla hypocrateriformis, tubo 
elongato carnosulo, fauce paulo constricto ; lobi 4, patentes, an . 
3-nerves Ss. Stomina 4, ore corolle inserta, omnino exserta, filamentis brevi- 
bus validis superne incrassatis ; anthere lineares, connectivo apice breviter 
pilosulis acutis. Fl. feem.: Ovarinm compressum, pappi setis seepius « 2. 
maris, sed tubo breviore. Stamina parva, antheris ae cassis. 
. ae 
Stee 
oS aoe 3 
