PEOTEACEAE. 107 



Order 9. PROTEALES. 



Mostly trees or shrubs with alternate leaves, and perfect flowers. 

 Calyx of 4 valvate somewhat united sepals. Corolla none. Stamens 4, 

 borne on the sepals. Pistil 1, the ovary superior, usually oblique. Fruit 

 various. 



Only the family Proteaceae, which consists of some 50 genera including 

 about 1000 species, natives of the southern hemisphere. 



Grevillea robusta Cunn., SILK OAK, Australian, planted for shade and 

 ornament, is a tree which becomes 50 or 60 high, with 2-pinnately parted, 

 somewhat pubescent leaves about 1 long, the ultimate linear-oblong segments 

 acute, the petiole short ; the flowers are borne in showy panicled racemes, the 

 eepals oval, the style elongated ; the fruits are recurved oblique follicles about 

 8" long, tipped with the slender curved or bent style. 



Leucadendron argenteum (L.) R. Br., SILVER TREE, of Table Mountain, 

 Cape of Good Hope, has linear-lanceolate sessile leaves, silvery-hairy beneath, 

 and capitate flowers. Lefroy records growing many plants from seeds, none of 

 which survived more than a few months. [Protea argentea L.] 



Hakea oleifolia (Smith) E. Br., OLIVE-LEAVED HAKEA, Australian, was 

 taken to Mt. Langton from the New York Botanical Garden in 1913. It be- 

 comes a small tree about 20 high, with oblong leaves about 2' long, and bears 

 flowers in dense axillary clusters. [Conchium oleiferum Smith.] 



Order 10. SANTALALES. 



Trees, or shrubs, and a few species herbaceous, many of them para- 

 sitic on the roots or branches of other plants, with simple, mostly entire 

 leaves, and inconspicuous, clustered, perfect or imperfect flowers, the 

 corolla present or wanting Ovary partly or wholly inferior, compound. 

 Stamens as many or twice as many as the sepals or petals. Fruit various. 

 Seeds mostly with fleshy endosperm. A large order, mostly tropical. 



Santalum album L., SANDAL-WOOD, East Indian, a tree up to 30 high, 

 with white or yellowish fragrant wood, was seen, in a beautiful specimen, at 

 Bellevue in 1913. It has thin, entire, elliptic leaves li'-3' long, slender- 

 petioled and acute at each end ; its small short-pedicelled flowers are in ter- 

 minal panicles about V long, the obovoid calyx about 1J" long, with 4 or 5 

 ovate-triangular lobes, at first white, turning purple. 



Order 11. ARISTOLOCHIALES. 



Herbs or vines, mostly with cordate or reniform leaves and perfect 



flowers. Calyx inferior, its tube wholly or partly adnate to the ovary. 



Corolla none. Ovary several- (mostly 6-) celled. Only the following 

 family. 



