SAXIFBAGACEM. 355 



ate leaves. Their blade is surmounted by a long acumen, below the 

 base of which the midrib bears on its upper surface the inflorescence, 

 a little ramified raceme of cymes 1 (fig. 411). 



Choristylis rhamnoides* has nearly the flowers of Phyllonoma, but 

 its two parietal placentas come into contact when adult ; and the 

 two styles, each ending in a little stigmatiferous head, are at first ap- 

 proximated into a seemingly single column, afterwards separating and 

 becoming recurved ; and the fruit is a little septicidal capsule. This 

 plant is a shrub from the Cape with the aspect of a Kbamnad, and 

 bears alternate exstipulate leaves, and polygamous flowers in little 

 supra-axillary ramified cymes. 



With some doubt we place next to P/iyllonoma and Choristylis the 

 genus Stichoneuron? hitherto made out a Santalad. Its flowers are 

 polygamous. In those that have a gynseceum the ovary is sunk in 

 a hollow obconical receptacle, and contains two pluriovulate parietal 

 placentas ; 4 it is surmounted by a style with two very short lobes. 

 The rim of the receptacle bears a perianth of four decussate, or more 

 rarely five imbricate leaves. To each is superposed a stamen whose 

 erect filament bears above a little introrse subdidymous anther, of 

 longitudinal dehiscence. 5 The ripe fruit and seeds are at present 

 unknown. The plant is a shrub from the East Indies, with knotty, 

 articulate (?) branches, bearing alternate oblong lanceolate shortly 

 petiolate leaves, membranous and nearly glabrous, and axillary 

 racemes of flowers, of which the filiform axis is covered above with 

 numerous alternate bracts, each with an axillary floral pedicel, articu- 

 lated in its upper half. 



IX. BREXIA SERIES. 



Brcxia* (figs. 412-415) has regular hermaphrodite flowers, with a 

 convex receptacle. This bears the following organs : a calyx 



1 The axes all diverge from their apparent 3 S. membranaceum Hook, f. & Thoms., in 

 insertion on the leaf. Keally, the inflorescence, Cat. Griffith (1865), 42, n. 43S7. — Colpopodium 

 at first free, is after a certain age carried up Wall, (ex Geiff., herb.). 



with the midrib, as in Helwingia. Each floral 4 The ovules are anatropous (Hook. f.). 



pedicel is accompanied by a little bract. 5 After flowering the anthers fall, and the 



2 Haev., in Hook. Jonrn., i. 19 ; Ft. Cap., ii. filaments persist. 



308.— Endl., Gen., n. 4676 '.— B. H., Gen., 647, 6 Dup.-Th., Gen. Nov. Madagasc, 20.— 



n. 46. — Bceobotrys rufescens E. Met. — Mcesa Lixdl., Veg. Kingd., 573, fig. 388. — Endl., 



palustris Hociist. (ex Haev., loc. cit.). Gen., n. 4681. — Ag., Theor. Syst., 141, t. xi. fig. 



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