196 NEW GENERA AND SPECIES 
the inflated bladders of some large quadruped, such as the tapir ; but on 
picking one up I found it to be India-rubber. 1 asked them to keep 
two or tliree balls for me when they had finished their game, and they 
promised to do so, but during the night they all got gloriously drunk 
and burst their balls. I did not see the tree from which this rubber 
was extracted, but from the description given me it was a true Siphonia, 
perhaps S. lutea. : 
In consequence of so many people devoting themselves to the fabri- 
cation of seringa, the value fell again more rapidly than it had risen, 
and by last advices from Pará, to date of February 1, 1855, serine? 
was down at 15 to 18 milreis the arroba. 
RICHARD SPRUCE. 
. Barra do Rio Negro, Feb. 9th, 1855. 
Description of some new Genera and Species of CEYLON PANGIACES; 
. by G. H. K. Tawartes, F.L.S., Superintendent of the Royal Botanic 
Garden at Peradenia. (Tas. VIII.) 
Nov. Gen. TRICHADENIA, Thw. Nat. Ord. Pangiacee. 
Char, Gen. Flores dioici. Calyx gamosepalus, integer, calyptreeformis, 
apertus, denique irregulariter disruptus. Corolle petala 5, hypogyna, 
imbricata. Sguamule 5, lanceolate, petalis opposite et cum iisdem 
dorso adnate, carnose, hirsute. Fr. Masc. Stamina 5, petalis 
. alterna, in zestivatione spiraliter contorta; filamentis crassis, basi 
. parce pilosis; antheris oblongis, prope basin dorso affixis, loculis 
lateralibus connectivum latum marginantibus, longitudinaliter dehis- 
= eentibus. Orvarii rudimentum nullum. FL. Fem. Stamina nulla. 
... Ovarium sessile, liberum, uniloculare ; placentis parietalibus, unio- 
. vulatis 3 ; ovulis suborthotropis, horizontalibus. Styli 3, divergentes. 
- Stigmata dilatata, reniformia, crenata. Bacca spheerica, 1-3-sperma. 
Semina testa ossea. Embryo orthotropus, in axi albuminis carnoso- 
. Oleosi; radicula brevi, cylindrica; cofyledonibus foliaceis, plicato- 
rugosis.—Arbor ingens Zeylanica; ramulis junioribus tomentosis ; folis 
.. alternis, petiolatis, oblongis, penniveniis, basi rotundatis, stipulatis ; 
= petiolis cylindricis; stipulis foliaceis, concavis, deciduis ; florum pani- 
.... -eulis racemiformibus, axillaribus, foliis brevioribus. 
— Trichadenia Zeylanica, Thw.—C.P. No. 2505 in Herbario Perade- 
.. nmiensi. 
