246 ‘ON THE GENUS CEODES OF FORSTER. 
name, the oldest, should be set ie; and I therefore propose to 
arrange the synonymy as follows : 
Pisonia — Forst. Prodr. p. 5. 16, n. 397 (1786), non Jacq. Forst. 
Icon. ined. 285. P. grandis, Parkinson, Drawings of Tahitian 
Plants, t. i ined. P. grandis, R. Brown, Prodr. Nov. Holl. p. 422 
(1810). P. procera, Bertero, mss. in Guill. Zeph. Tait. p. 39 (1837); 
Deless. Icon. Select. iii. t.81. P. Brunoniana, Endl. Fl. Norf. p. 43, 
n. 88 (1833). F. Bauer, Z/lust. Pl. Norf. t. 145. Nomen vernaculum 
Tahitense, * Buatea," teste Guillemin. 
The geographical range of this species extends from the Society 
Islands to the east coast of New Holland, and from the Sandwich Islands 
.to Ceylon, viz. Tahiti (Banks and Solander !, Forster, Bertero !, Moeren- 
hout, Bidwill !, Barclay !), Norfolk Island (Ferd. Bauer /), Viti (See- 
mann ! n. 363), Lifuka, Tongan Islands (Harvey /), Sandwich Islands 
(Herb. Hook), Bow Islands, Dangerous Archipelago (Barclay /), Co- 
lombo, Ceylon (Thwaites /), Pratas Islands (Wilford /), tropical parts 
of eastern Australia (E. Brown ! in Mus. Brit.). 
This examination reduces the Pisonias as yet discovered in Poly- 
nesia and Australasia to two species, which may be thus distinguished:— 
P. umbellifera ; foliis inferioribus oppositis, superioribus plerumque 
verticillatis, elliptico-oblongis v. oblongis acuminatis v. obtusis basi iu 
petiolum angustatis, perianthiis fructiferis inermibus 
P. inermis ; folis omnibus oppositis ovatis v. oblohgis obtusis. vel 
acuminatis, perianthiis fructiferis spinulosis. i 
the doubt being increased by Sir J. wes Tint sche the Linnean Herbarium to some 
specimens of the Indian form of P acu xar then A ne is, though h Limes 
distinctly states his mitis to be unarmed. oe whi ch Linn 
— made in a copy of his second ein iy the * "ha | Plantarum, Hu 1511, "à 
rved at the Linnean Society, corrections adopted by Murray, make clear that 
eri LZ ns is is a quede ital Weir Jacquin's P. inermis and Seah (s P. E 
gricans. s In o his P. mitis Sa Amer. i^ ^ strikes 
out the wel D Posta aga ay spinosa, Amm. Herb. 582. u Kava t 
Wal, Rhed. Mal. 7, p. 33, t. 17 substitutes for “ Habitat in p el ^ abita 
in. XE Um and finally adds: “ Arbor san Bimani sterilis, alia her rmaphr hr, fer- 
tilis." ce the synonymy of P. mad pan eg itis, o: Sp. Plant. ed. ii. 
p- Pe aedes syn. omnib. P. x rodr, p. 60; Fl. Ind. Oce 
p. 643 ; De Cand. Prodr. xiii. p. "vt ii P ausis ed. Amer. p. 275, non Fors 
