Flora Medica

crenature is a conspicuous pellucid gland; there is also a narrow,pellucid margin round the whole leaf. Peduncles about as long as theleaf, axillary and terminal, chiefly from the superior leaves, singleflowered,often (but not always) bearing a pair of small opposite leavesor bracteas above the middle, each of which has a flower in its axil.Beneath the calyx are 2 or 3 pairs of small imbricated bracteas. Calyxof 5 ovate-acuminate leaflets, green, tinged with purple. Corolla of 5ovate petals, purple in bud, blush-coloured when fully expanded.Stamens 5, at first erect, then recurved, about as long as the petals.Filaments slightly villous. Anthers oblong. Barren filaments 5, lanceolate,white, rather villous, tipped with a gland, the lower part erect,the upper half spreading. Hypogynous disk, an annular, dark greengland. Ovary very short, abortive (?) covered with 5 lanceolate, fleshy,slightly spreading appendages. Style filiform, curved. Stigma minute.Hooker. One of the plants whose leaves are collected in SouthAfrica by the Hottentots under the name of Bucku. They are foundto be an excellent aromatic stomachic and very efficacious as a diuretic.The infusion is much praised as a remedy in chronic inflammations ofthe bladder and urethra and in chronic rheumatism. Several species arecollected by the Hottentots according to Thunberg, especially B. betulinaand pulchella, and even Adenandra uniflora, to which some Agathosmasand many others may no doubt be added. Sir W.Hooker takesthis as the one to which preference is given.437. B. serratifolia Willd. 1. c. Diosma serratifolia Hot.mag. t. 456. Cape of Good Hope.Leaves linear-lanceolate, acuminate, serrulated, smooth, glandular atthe edges, 3-nerved. Flowers lateral, white, upon short axillary bracteatepeduncles. The leaves of this are commonly sold in the shops asBucku leaves.438. B. crenata Eckl. and Zeyhar. enum. i. 102. D. crenataDC. prodr.i. 714. Lodd. Sot. cab. t. 404. copied in S. and C.t. 121. Cape of Good Hope.Leaves ovate and obovate, acute, serrated, dotted, glandular at theedge. Flowers pink, terminal, on short lateral leafy branches. This isthe sort of Bucku to which De Candolle applies the name of D. crenata,and which is figured by Messrs. Stevenson and Churchill as thetrue officinal plant.ZYGOPHYLLACE^l.Nat.syst. ed. 2. p. 133.ZYGOPHYLLUM.Calyx deeply 5-parted, rather unequal. Petals equal to the sepalsin length, or larger, unguiculate. Stamens 10, somewhatunequal, scaly at the base. Ovary 5-cornered, 5-celled, placed ona short convex or concave receptacle ; the cells containing 2 or213 p 3