PHANEROGAMS— PROFESSOR BAYLEY BALFOUR. 157 



C. Schimperi, Alph. DC. Prod. viii. 675 ; Ach. Eich. Tent Flor. Abyss, ii. 

 31, t. 68. 



Socotra. Not uncommon. B.C.S. n. 593. Schweinf. n. 668. 



Distrib. Abyssinia. 



There may be some doubt as to this identification. I have seen no 

 specimens of the Abyssinian plant, but with the description and the figure our 

 plant accords very well. Especially does it conform in the features which are 

 mentioned as strongly characteristic of the species, viz : — the glabrousness, the 

 green branchlets, and its generally non-spiny habit. In this last character, 

 however, it varies, for I find on some of our specimens minute and sometimes 

 prominent spines. The chief points of difference are found in its shorter and 

 fewer flowered inflorescences, narrower corolla lobes, and smaller fruit. 



2. SOCOTORA. 



Socotora, Balf. fil. in Proc. Roy. Soc. Edin. xii. (1883), 77. 



Calyx brevis 5-partitus basi intus glandulosus segmentis acutis. Corolla late campanulata, 

 tubo brevissimo, fauce squamis 2-seriatis connatis instructo, exterioribus 5 flagelliformibus 

 sinubus oppositis, interioribus 10 rotunda tis obliquis per pares lobis oppositis ; lobi 5, 

 oblongo-ovati, obtusi, eniarginati, ecaudati, antice rubro glandulo paunosi, contorti, 

 dextrorsum obtegentes. Stamina 5 tubo affixa, filamentis validis, decurrentibus, basi 

 dilatatis et inter se squamis connatis ; antberae exsertae, subovatae, acuta;, circum stigma 

 conniventes non adbserentes, connectivo lato dorso villoso, loculis basi cassis in appeudiculas 

 breves rotundatas productis. Pollen granulosum in quoque loculo in massas 2 cobserens. 

 Discus 0. Ovarii carpella 2 conjuncta ; stylus validiis brevis ; stigma dilatatum vertice 

 depresso-conicum, lateraliter 5-gonum, galeis 5 cinctum et appendicula stigmatica ab 

 quoque angulo pendula instructum ; ovula in quoque loculo numerosa. Folliculi lineares 

 divaricatim adscendentes et basi connati. Semina lanceolata trigono-compressa apice 

 comosa ; albumen copiosum firmum ; cotyledones lineari-oblongae, rectae, planae, crassius- 

 culae, radicula supera longiores. — Frutex scandens, glaber, crassiusculus, aphyllus. Folia 

 cataphyllaria opposita. Flores solitarii axillares. 



A monotypic genus, with the habit and general appearance of Periplocece, 

 especially of Periploca itself; but it is excluded from Asclepiadacese by the 

 absence of the corpuscles bearing the pollen, the only character by which 

 Apocynads are distinguishable from Asclepiads. 



In the Apocynacese it belongs to the tribe of the EcMtidece with appendaged 

 anthers. But in this tribe it is somewhat exceptional, and indeed in the whole 

 family it is remarkable on account of the complexity of its floral structure. 

 This is worthy of special mention. In the first place each corolla lobe has on 

 its face a large red glandular patch, secreting a very tenacious substance. On 

 the throat of the corolla are two sets of scales, an outer of five and an inner of 

 ten pieces, or perhaps one may say one set of five scales, each of which is divided 

 into three pieces, the central one being external, the other two internal. The 

 central ones are long, filiform structures, opposite the sinuses of the corolla 



