426 ^I^I' ROSACE^l^. 



Ovule pendulous. Style terminal or nearly so. Leaves pinnate. 



rraitiiig-calyx armed with prickles. Stamens few 7- Ac.ena. 



Fruiting-calyx without prickles. Flowers usually moncecious. 



Stamens numerous 



. POTEKlUM(p. 434). 



Of 



1. PAEINARIUM, Juss. 



(Petrocarya, Jaclc ; Grymania, FresL) 



■ 



Calyx-lobes 5, imbricate. Petals 5, rarely 4. Stamens numerous or rarely 

 few, all perfect or those on one side reduced to small staminodia; filaments 

 filiform ; antbers small. Ovary of a single carpel, adnate on one side to the 

 mouth of the calyx-tube and protruding from it, more or less completely 2- 

 celled, with 1 erect ovule in eacb cell ; style from the base of the ovary. 

 Drupe ovoid or spherical, the endocarp bony. Seeds 1 or 2, erect.— Trees. 

 Leaves alternate, coriaceous, entire. Stipules deciduous, usually small 

 Flowers white or pink, in cymes forming terminal raceme-like or corymbose 



panicles. 



The genns is dispersed over the tropical regions both of the New and the Old World. 

 the two Australian species, one is also in the Indian Archipelago, the other is endemic. 



Petiole without glands. Leaves much veined. Flowers small. Calyx- 

 lobes acute. Perfect stamens about 8 \. P, Nonda^ 



Petiole with 2 glands. Leaves shining, little veined. Flowers rather ^ .^r / • 



large. Calyx-lohes obtuse. Perfect stamens 30 to 50 .... 2. P. Gnffilhiamm. 



1. P. Nonda, F, MuelL Ilerh. Branches rather slender, loosely tonien- 

 tose wben young. Leaves ovate, obtuse or obtusely acuminate, rounded or 

 almost cordate at tbe base, 2 to 3 in. long, 1 to 1^ in. broad, rarely narrower 

 and narrowed at each end, glabrous but rather roudi above, whitish witli a 

 minute tomentum underneath, with many prominent parallel pinnate venis 

 and much reticulate between them. Flowers small, the terminal I^*^"^^^ ?^^^ 

 thyrsus loose, the axillary oues smaller and raceme-like. Bracts shorlei I a^ 

 the flowers, dccithious. " Calyx pubescent, nearly regular, about 2 hues lonp 

 the lobes acute, rather shorter than the tube and almost as long as the pcta s. 

 Stamens short, usually about 8 perfect on the same side of the flower as ti 

 ovary, the ring completed by 6 to 10 small staminodia. Drupe ovoid, densey 

 villous inside, 2 -celled, 2 -seeded. 



N, Australia. From the Upper Liud to Van Dicmen's river, Gulf of Carpentaria, 



Leichhardt ; Gilbert river, F. Mueller. 



Queensland. Cape York, WGlllicray ; Albany Island, F. MueUer, ^^^ 



The species is nearly allied to the P. sumatranum of the Indian Archipelago, ^^ ^^^^ 



more to the African P. curat elhvfoHum, Planch., but the flowers appear ^*^,?\^"t ■ L^ardt 



in either, with some slight differences in the foliage. It is the one to which Lci 



gives the name of No'nda-tree in his travels. 



2. P. Griffithianum, Benth, in Hook. FL Nig. 334. Branches stout, 



gianus at tiie lop oi ine peuoie. luowers ratner largc, m l^iu^—- - ljout2 

 hoary-pubescent panicles. Calyx-tube obliquely turbinate, incurved, a ^ ^^^ 

 lines long; lobes very obtuse, the largest as long as the tube, -tc 

 ceeding the calyx. Stamens very numerous (30 to 50), all periect. 



