^^^^^^•] XUT. -ROSACEiE. 435 



A. sangidsorla, but with strictly monoecious flowers, more numerous and longer stamens, 

 aod the fruiting calyx without prickles, is said to have established itself in some parts of 

 Victoria, introduced from Europe. 



OnDER XLII. SAXIFRAGES. 



Calyx free or adnate to the ovary, with 4 or 5 valvate or imbricate lobes or 

 segments. Petals as many as calyx-lobes, valvate or Imbricate, sometimes 

 very small or wanting. Stamens as many or twice as many as calyx-lobes, 

 rarely fewer and very rarely indefinite, inserted with the petals on or outside a 

 perig'ynous or epigynous disk or rarely hypogynous. Ovary more or less 

 adnate to the calyx, or if free usually attached by a broad ba^e, either 2- to 

 5-ceJled or with 2 to 5 parietal placentas, veiy rarely contracted at the base 

 or apocai-pous ; ovules usually several, very rarely solitary in eacli cell or to 

 ^ach placenta; styles as many as cells or placentas, distinct or rarely united. 

 Iniit capsular or very rarely succulent and indehiscent. Seeds usually small, 

 ^ith a copious albumen and small or terete straight embryo, very rarely larger 

 3nd without albumen. — Herbs shrubs or trees. Leaves alternate or opposite, 

 simple or compound, with or without' stipules. Flowers usually regular and 

 Jiermaphrodite. 



A large Order, ranging over nearly the whole world, the shrubby or arborescent genera 

 My tropical, the herbaceous ones from the more temperate or colder regions of the northern 

 ^etmsphere, with a few estratropical southern genera or species. (Df the 20 Austialian 

 niT\v ^ ^^ ^^idely dispersed over the tropical and subtropical regions of the New and the 

 y^^ Horld, 1 spreads over E. India and the Archipela.sro, 1 is represented in extratropical S. 

 Amenca, 2 in New Caledonia, 1 in New Zealand and' the antarctic regions generally, 2 in 

 J T Zealand alone, and the remaining 12, many of them monotypic, are endemic in Aus- 

 /t'^: The Order includes a great variety of forms, evidently connected with each other, 

 p : difficult to unite by a common character which shall separate them from several other 

 ^a^yciflorous and some Thalamifiorous Orders into which they appear sometimes to pass. 

 ^ere IS especially no one character to distinguish them from Rosacea' which has not some 

 ^^ception, although the ereater number of eenera differ from that Order in their definite 



^^D3, United carpels with free styles, and copious albumen. 



Tribk I. Escalloniese.— ^>^mi5 or freest Leaves alternate (except Polyosma). Sti- 

 mes none, Sta?ne?zs as manu as cahx-segments. Stales muaUy united or cohering, at 

 y under the stigma, ^ ^ ^ 



^'^ 2. to S-celled, 

 blowers corymbose. Petals valvate. 

 *Jvary semi-adnate. Petals fringed inside. Fruit capsLdar. 



leaves white underneath 1. Argophyllum. 



Ovary free. Petals not frinced. Fruit succulent. Leaves 



^ green .... 2. Abrofhyllum. 



jj^p^owers racemose. ^ • • • 3. Guintixia. 



.^with 2 parietal placentas. Flowers racemose, 

 ^^tals valvate. Ovary inferior. Fruit succulent, 1 -seeded . . 4. Polyosma. 

 ^^tals imbricate. Ovary free. Capsule mauy-sceded . . . • &■ Anopterus, 



Trtbe II. Cunoniese.— 5//;m«j or trees. Leaves opposite (except Tetracarpaca). 

 frf^.f^^^^^y Present. Stamens twice as many as calyx-segments or indefnite. Styles 



Sta ""^ ^^^ ^^P' 



eas twice as many as calyx-segments. 



^V^-segments valvate or rarely slightly imbricate. Flowers soli- , 

 tary, cymose, capitate or paniculate. 



2 F 2 



k 



