136 



XXIV. EOSACEAE. [^Rosa. 



* R. canina, L., Sjj. PL 492, var. sarmentacea. An erect bush, with arching 

 branches 6ft. -8ft. high, eglandular. Branches with stout hooked prickles from a 

 dilated base. Midrib and stipules with a few glandular hairs or glabrous. Leaflets 

 glabrous on both surfaces, flat, acute or acuminate, sharply toothed. Flowers 1-4. 

 Peduncles glabrous. Sepals pinnate, reflexed, deciduous, pubescent or downy. Fruit 

 subglobose or ovoid. 



NORTH and SOUTH Islands: naturalised, but more local than E. rubiginosa. Nov. to Jan. 

 Dog-rose. Europe, North Africa, &c. 



* R. multiflora, Thmib., Fl. Jap. 214. A much-branched shrub, with long 

 spreading shoots. Bark downy ; prickles few ; stipules pectinate. Leaflets in 2 or 3 

 pairs, ovate-lanceolate, serrate, soft, rugose. Flowers in terminal corymbs. Peduncles 

 and calyx downy or pubescent. Petals numerous, crowded. 



NORTH Island: chiefly on the site of deserted homesteads, &o., in the Auckland and Wel- 

 lington districts. Often planted for hedges. Not naturalised. China. 



* CRATAEGUS, Linn, 

 Calyx-tube urceolate ; segments 5, acute. Petals 5, perigynous. Carpels 1-5, 

 adnate to the calyx-tube; styles 1-5; ovules 2 in each cell. Fruit globose or ovoid, 

 with 1-5 bony 1-seeded stones or with a bony 5-celled stone. Small trees or shrubs, 

 often with spiny branches, deciduous stipules, lobed entire or pinnatifid leaves, and 

 terminal eymose or subcorymbose flowers. 



* C. Oxyacantha, L., Sp. PI. 4:11 . An erect, spinose, much-branched shrub or 

 small tree. Leaves on short petioles, obovate, cuneate at the base, 3-4-lobed ; lobes 

 incised or toothed. Cymes many-flowered, often corymbose. Pedicels strict, pube- 

 rulous or glabrous. Calyx-lobes acute or acuminate. Carpels 1-3. Fruit subglobose 

 or ovoid, crimson. 



NORTH Island : occasionally met with in thickets and on the margins of forests, &o. 

 Hawthorn. Oct., Nov. Europe, &c. 



Oedeb xxv.-SAXIFRAGEAE. 



Calyx inferior or superior ; lobes 4 or 5, valvate or imbricate. Petals 

 4 or 5j valvate or imbricate, often small or 0. Stamens -1 or 5, or twice as 

 many as the petals, rarely more or fewer, inserted on or outside a perigynous 

 or epigynous disk, rarely hypogynoas. Ovary 2— 5-celled, or with 2—5 parietal 

 placentas, rarely apocarpous ; styles as many as cells, free or united ; stigmas 

 capitate ; ovules several in each cell. Fruit usually a capsule or rarely sub- 

 baccate and indehiscent. Seeds usually small, with copious endosperm ; embryo 

 terete. Herbs, shrubs, or trees. Leaves stipulate or exstipulate, alternate or 

 opposite, simple or compound. Mowers usually regular and hermaphrodite. 



Genbea, 75. Species, about 580. Represented in nearly all countries. All the New 

 Zealand species are evergreen shrubs or trees. Two New Zealand genera are monotypio and 

 endemic; two extend to Australia, and one is represented in most warm countries. 



Tribe I. ESCALLONIEAE.— Leaves alternate, simple, exstipulate. Stamens as many as calyx- 

 lobes. Style more or less united. 



1. QuiNTiNiA. Flowers racemose. Petals imbricate. Ovary inferior. 



2. IxEEBA. Flowers panicled. Petals large, imbricate. Ovary superior. 



3. Caepodetus. Flowers panicled. Petals valvate. Ovary inferior. 



