450 XLII. SAXIFRAGES. 



20. DONATIA, Eorst. 



Calyx-tube adnate to the ovaiy, lobes 4 or 5 Petals 5 to 10, mserted 

 rouad a broad flat disk. Stamens 2 or 3, inserted on or witlnn the disk 

 anthers 2-eelled, opening outwards. Ovary i:.ferior, 2- or — 1^^' -f/^ 

 ovules in each eell attached to a pendulous placenta ; styles hort and t uck 

 united at the base, stigmas globular. Fruit . . -Densely tuf ed a p n 

 herbs. Leaves small, closely imbricated, persistent. Flowers sohtaiy, sessile 

 amongst the leaves, . 



Besides the Australian species, which is also in New Zealand, there is °;«/;°"; *X 



Order. 



Novse-Zelandise, Eool.f 



A small 



densely tufted perennial, the short stem completely covered by the cro^ae 

 imbricated leaves. Leaves linear, about 2 lines long, <^"tire coiiaceous, 

 shining, the fresh ones terminating the tufts of a bright green, the oia pe 

 sisting ones below them brown, with dense tufts of white sln"'f S/^™^;;,''': 

 rious hairs in their axils. Flowers solitary and sessile m the tuits, a bom a 

 long as the leaves. Calyx-tube turbinate, the 5 lobes thick, ^o«^^f '^^^ °J;;^^^^ 

 shining like the leaves. Petals 5. Stamens 2, inserted near tl^e ~ 

 the disk close to the base of the styles and almost cohering with ttiei . 

 Ovules about 12 in each cell, in a dense tuft pendulous from the top. 



Tasmania. Summit of Mount Lapeyrouse, Oldfeld ; also in New Zealand. 



OiiDER XLIII. CRASSULACE^. 



Sepals 3 or more, usually 5, but sometimes up to 20, free f''«m/^^ ^J'-'J; 

 but occasionally united in a lobed calyx. Petals as many as sepals, irt 

 rarely united in a lobed corolla. Stamens as many or twice as many as p • ^^ 

 inserted with them at the base of the calyx. Ovaiy superior, the carp ^^ 

 many as the petals, distinct, usually with a small flat scale at the l^^se^' j,^; 

 with several ovules in each; styles simple, distinct. Bipe f""P ^Mili^s^or 

 Seeds several, with a thin fleshy albumen and straight embiyo. ^ jgg_ 

 rarely low shrubs or undershrubs. Leaves succulent, "^^'"/f^" jygters. 

 Flowers in terminal racemes cymes or panicles, or rarely m axillary ^^^^^^^^^^^, 



A rather numerons Order, extending over the greater part of the glohe, ^\ ^^^gtralian 

 abonnding in S. Africa and in the rocky districts of Europe and Asia. IM o^^^ ^^ ^^^^ 

 genus is generally spread over the area of the Order. The Order is near > .^ ^^^^ 



herbaceous Saxifragew, hut it is more apocarpous, the stamens less pcrigynous, 

 known by its succulent leaves and thoroughly isomerous flowers. 



1. TILL^A, Linn. 



(Bulliarda, DC) . _ • a not 



Sepals, petals, stamens and carpels 3 or 4 each, very rarely, i" specie. ^^^^ 

 . Australian, 5, all distinct. Eipe carpels opening along the innei p^^^^^^, 

 seeds often reduced to 1 or 2 in each.— Small, often minute, heros. 

 opposite. Flowers minute, axillary or in a terminal leafy panicle. ^^ ^^^^ 



The genus has very nearly the extensive geographical range of the Oi er. 



