C0NNABACE2E. 5 



alternate imparipinnate, 1 and the flowers are axillary to the leaves, 

 as in Connarus. 



A distinct genus has been made of Byrsocarpus? in which the 

 calyx, instead of being closely applied to the base of the fruit, 

 diverges more or less, or even becomes spreading at maturity. But 

 this character is often ill- marked, 3 and is, moreover, of so very little 

 value that it will only allow us to consider Byrsocarpus as a section 

 of the genus Bourea, of which it has altogether the floral and veee- 

 tive organs. 4 This little group contains seven or eight African 

 species, some from the west coast, 5 and others from the east const 

 and Madagascar. 6 



So we have been unable to exclude from the genus Bourea 

 the Brazilian species Bernardinia fluminensis, 1 in which the calyx 

 falls off before the fruit is ripe. 8 Thus we admit three sections 9 

 in the genus Bourea, often difficult of clear discrimination by these 

 characters drawn from the calyx. 



II. CNESTIS SEEIES. 



Cnestis™ (figs. 9-11) has hermaphrodite or polygamous flowers. 

 In the former the receptacle is the same as in Connarus. The calyx 

 consists of five free sepals, valvate in the bud, while the alternating 

 petals, of the same number as the sepals but usually shorter," have 



1 Sometimes reduced to three leaflets, or even 7 Pl., in Linnaa, xxiii. 412. — B. II., Gen., 

 to a single one; these variations may be met 431, n. 2. — Wah\, Ann., ii. 295. 



with on one and the same plant, as indicated by 8 See Adansonia, vii. 232. It is not usual 



tbe specific name of B. heterophylla. to separate those species of Connarus in which 



2 Schum. & Thonn., Beskr., 226. — B. H., the calyx thus comes oil' from the base of the 

 Gen., 431, n. 1. — H. Bn., in Adansonia, vii. fruit, from the rest of the genus. 



229. 9 I. Eurourea, 2. Byrsocarpus, 3. Bemar- 



;i " In the series of species from Madagascar din in. 

 we find every intermediate stage in this respect 10 J., Gen., 371. — Lamk., Diet., iii. L':!; 



between the Bengal species of Byrsocarpus, with Suppl., ii. 828 j ///., t. ;\s~ . — R. l'.i;., Congo, 



spreading sepals, and those mimosoid Boureas 423; Misc. Works, ed. l'.iw, i. 113. — DC, 



from Tropical Africa, where the calyx is more or Prodr., ii. 8(i. — K., in Ann. Sc. Nat, soY. 1, 



less markedly constricted." (See H. Bn., loc. ii. 359.— Km>i„ lien., n. 5950. — B. 11., (l<n., 



cit., 229.) 433, n. 8.— 11. Bn., in Adansonia, vii. 240. 



4 And again, we have observed, "If Byrso- u Their breadth is often nearly equal to their 

 carpus were considered as a section of the genus length, and the apex is rounded or emarginate, 

 Bourea, it would be very difficult to separate but in some species they are more elonj 

 this section from Eurourea, which would con- like ribbons. In C. corniculata LaMK. | 



tain Bourea proper." iii. 23, n. 3 ; — Agelcea prurient Sol \m>.. herb. ; 



5 Pl., in Linncea, 412. — Hook., Niger., — Spondioides pruriens Smeathm., herb.), the 

 290.— Bakee, loc. cit., 452.— Wajp., Ann., ii. petals may exceed the sepals in length bj n 

 294. variable extent. So too in C. polyphylla Lamk. 



6 H. Bn., loc. cit., 230-234. (Diet., loc. cit., n. 2). 



