do." STACKHOUSIEZ. [Stackhousia. 
or linear-obovate, flat, acute. Flowers small, yellow, solitary and 
terminal, almost sessile or on very short peduncles, always exceed- 
ing the leaves. Calyx-lobes short, acute. Petals usually connate 
at the middle to form a tubular corolla but often altogether free, 
linear, acute or acuminate, tips recurved. Stamens 3 long and 2 
much shorter: anthers glabrous. Ovary 3-lobed; style very short, 
3-cleft. Cocci obovoid, smooth, 1 or 2 ripening, seldom 3.—Handb. 
N.Z. Fl. 42; Kirk, Students’ Fl. 90. 8. uniflora, Col. in Trans. 
N.Z. Inst. xviii. (1886) 258. 
Norru Istanp: Hawke’s Bay—Open downs on the east coast, Colenso ; 
Waipawa County, H. Hill! Sourn Isnanp: Nelson—Mount Arthur Plateau, 
Wangapeka, 7. F.C.; Spenser Mountains, Kirk ! Canterbury—Ribband-wood 
Range, Haast; Broken River, Enys! Burnham, Kirk! Central Otago, not 
rare, Petrie! Sea-level to 4000 ft. December—January. 
Sir Joseph Hooker describes the flowers as occurring in few-flowered 
spikes, and the anthers as pubescent ; but I have not seen any specimens 
answering to this. 
Orper XVIII. RHAMNEAS 
Trees, shrubs, or woody climbers; branches sometimes spines- 
cent. Leaves simple, alternate, rarely opposite, entire or toothed. 
Stipules small, often caducous, sometimes metamorphosed into 
thorns. Flowers regular, hermaphrodite or unisexual, small and 
inconspicuous, usually arranged in axillary or terminal cymes or 
panicles. Calyx 4-5-cleft, valvate. Petals 4-5, rarely wanting, 
inserted on the throat of the calyx-tube, small, usually hood-shaped 
or involute. Stamens 4-5, perigynous, inserted with the petals and 
opposite to them ; filaments short; anthers often concealed within 
the involute tips of the petals. Disc perigynous, adnate to the 
calyx, of very various shape. Ovary free or immersed in the disc, 
altogether superior or more or less adnate to the calyx-tube, 3-celled, 
rarely 2- or 4-celled ; style short ; ovules solitary in each cell, erect, 
anatropous. Fruit free or girt by the persistent calyx-tube, dru- 
paceous or capsular, 1-4-celled. “Seed solitary, erect, sometimes 
arillate; albumen fleshy, rarely wanting ; embryo large, erect, 
radicle inferior. 
A well-marked order, distributed over most parts of the world. Genera 
about 40; species under 500. The jujube (Zizyphus) produces a wholesome and 
agreeable fruit, but as a rule most of the species possess bitter or astringent 
properties, and some are purgative. The 2 genera found in New Zealand both 
extend to Australia, and 1 of them (Discaria) 1s found in South America as 
well. 
Tomentose, unarmed. Leaves alternate. Ovary inferior 1. POMADERRIS. 
Glabrous, spiny. Leaves opposite or wanting. Ovary 
superior a 46 oy. Ae .. 2, DISCARIA. 
1. POMADERRIS, Labill. 
Shrubs, more or less covered with hoary or ferrugmous stellate 
tomentum. Leaves alternate. Flowers pedicellate, in small cymes 
