'29-2 



NATURAL HISTORY OF PLANTS. 



one species of this genus is known, P. BoJdus,' from Chili, a small 

 aromatic tree, with opposite exstipulate leaves. Its flowers are in 

 axilUiry and terminal bunches of cymes, with opposite ramifications 

 and pedicels. It has the vulgar names of Boldii and Boldo. Its 

 structure is, as shown by the preceding description, closely analogous 

 to that of Ilorhnia, from which it only differs in characters of no 

 great value : — the slightly different form of its floral receptacle, the 

 complete separation of the sexes, the introrse aspect of the anthers, 

 the way the female perianth separates from the base of the recep- 

 tacle after flowering, and the peculiar relations of the embryo to its 

 albumen. 



Hedycaryd- (figs. 325-327) also constitutes a closely-allied genus, 

 rather analogous to Ilortonia than to Pemmis, for there is no need 



Hedycarya arhorea. 



% 



^X^k^:^ 



mm 



Fig. 326. 

 Female flower. 



Fig. 325. 

 Male flower (f ). 



Fig. 327. 

 Carpel opened (Y'). 



for its perianth to fall ofi" in a ring to free its fruit. This depends 

 on the fact that the perigonium is very short, and that its eight^ 

 imbricate divisions, quite continuous with the receptacle, form a 

 widely-open cup, which is the same in both male and female flowers. 

 The males have a variable number of stamens (from ten to forty), 

 inserted round the centre of the receptacle, each consisting of a short 

 erect filament, and a basifixed elongated anther, with two nearly 

 lateral adnate cells, each dehiscing by a nearly marginal or slightly 

 extrorse longitudinal cleft. In the female flower a similar perianth 



' MoLiN'., loc. clt. — P. fragrans Pees., 

 Enchir., ii. 029.— Sprexo., /S^4<. Veff.,\\. 544, 

 n. 1H7<I. — liidzin frog rails, K. & Pav., Prodr., 

 loc. cit.; Sy.ll. Fl.Per.et CIiiL.i. 207.— Boldoa 

 fraqrans C. Gay, op. cit., 353. — Lindl., Veg. 

 Kingd., 298, figs. ccv. ccvi. — Boldea fragrans 

 TUL., op. cit., 412. — Boldu, arbor olivifera 

 FEriLL., foe. cif. (cxcl. t. vi. ex A. DC). 



' J. & 0. FoRST., Char. Gen., 127, t. 64.— 

 I,.. Stipp/., 67. — MfRif., Si/.tf., efl. xiv. 894. — 



C. FoEST., Fl.Iiis. Ausir. Prodr., 71. — J., Gen., 

 401.— Lamk., Bid., iii. 415 ; ///., t. 827.— TuL., 

 Mon., 405 (excl. tab.). — A. DC, Prodr., xvi. s. 

 post., 642, 672. — H. Bn., Adansonia, ix. 119, 

 132, 133. — Crinonia Banks ex Tul., loc. cit. 



•' This is the commonest number, but there are 

 flowers with only five or six leaves to the peri- 

 anth ; when there are more than eight some of 

 them are smaller than the rest, and often very 

 irregular. 



