TEREBINTHAOEM. 



285 



Chlamydocarya Thomsoniana. 



remarkably enough., with most of the characters of the latter, has 

 a concave receptacle, and, accordingly, a fruit half inserted in this 

 receptacle (fig. 334), whilst . the perigynous, 

 gamophyllus perianth, persistent and accres- 

 cent, covers it like a long cap lengthened iato a 

 tube. The two species of Chlamydocarya known 

 are from tropical Africa ; the female flowers are 

 united in spikes or capitules. In lodes be- 

 longing to tropical Asia, Oceania and Africa, the 

 flowers are arranged in compound cymes. The 

 flowers have an inferior perianth, accompanied 

 or not by an exterior calicule. The fruit is 

 superior, with a seed whose embryo has folia- 

 ceous cotyledons surrounded by a fleshy albu- 

 men. They consist of sarmentaeeous or climb- 

 ing shrubs, provided with tendrils,, and having 

 opposite leaves. 



Following the Phytocrenece has been placed 

 with some doubt Cardiopteris, whose name 

 comes from the marginal wings accompanying 

 the dry fruit, and which probably is quite as 

 much allied to Mappia by the hermaphrodite 

 flowers provided with a double perianth, that 

 is to say, a true calyx and an imbricate gamo- 

 petalous corolla, and an androceum of five 



stamens borne by the corolla and alternate with its divisions. The 

 ovary only contains one ovule, which recalls that of Fennantia. The 

 only Cardiopteris known is a perennial, herbaceous or suflErutescent, 

 climbing plant, with milky sap, inhabiting tropical Asia and Oceania. 



Fig. 334. Longitudinal 

 section of fruit. 



This family, as we have described it, is manifestly a family *' by 

 concatenation," and there is at first sight little resemblance between 

 the first and last types, but if it is correct to say, after seeing them 

 together, that there is not the slightest affinity between a Phytocrene 

 and a Spondias or Bursera, it is not less true that many species of Map- 

 pia, for example, have flowers constituted very nearly like those 

 of Phytocrene, and that between the Mappia and the Corynocarpus, 

 inseparable, nevertheless from certain species of Jnacardium, there 



