S76 Lxxxv. ASCLEPiADE^ (brown). [Marga^'cUa. 



Imperfectly known species. 



5. M. Cornetii, Deivevre in Comptes-rcmdus Soc. Bot. Belg. xxxiv, 

 DO. Ilesembles M. rosea, Oliv., and M. Holstii, K. Schum., in general 

 appearance but has a larger inflorescence and larger flowers. Sepals 

 oh lin. long, lanceolate, acute, pubescent. Corolla-lobes oblong, obtuse, 

 mucronate, glabrous, greenish-yellow. Coronal-lobes 7^ lin, long, 

 obovate, obtuse, narrowed into a claw at the base, mauve with a yellowish 

 midrib. 



South Central. Congo Free State : Katanga, Cornet. 



I liave not seen this species, but from tlie imperfect description jndge it to be 

 i'losely allied to M. orbicularis, its flowers seem to be larger than those of the 

 species known to me. 



22. PACHYCARPUS, E. Meyer, Comm. 209. 



Calyx 5-partite. Corolla deeply 5-lobed, campanulate, rotate or 

 reflexed ; lobes overlapping to the left in bud. Corona of 5 lobes 

 arising from the base of the staminal-column, usually long, tongue- 

 shaped, linear or dilated at the apex and frequently at the base also, 

 spreading at the base then more or less incurved over the staminal- 

 column, and with or without a pair of contiguous erect flat lobes, teeth 

 or keels at the base on the upper side ; sometimes short and consisting 

 of the basal part bearing the erect pair of contiguous lobes only, the 

 terminal portion being undeveloped. Staminal-column arising from 

 the bottom of the corolla, sessile or subsessile, the filament part being 

 undeveloped, forming a very broad 5-angled truncate cone, from 

 the very rigid and horny anther-wings, being exceedingly broad 

 and projecting at the base. Anthers with terminal membranous 

 appendages inflexed over the apex of the style. Pollen-masses pen- 

 dulous, solitary in each anther-cell, attached in pairs to the pollen- 

 carriers by broad flat caudicles, which are abruptly bent at the middle. 

 Style truncate or depressed at the apex, not exceeding the anther- 

 appendages. Follicles solitary (always ?), coriaceous, usually winged, 

 at least on the apical part, sometimes toothed or echinate along the 

 wings. Seeds crowned with a tuft of hairs. — Erect herbs. Leaves 

 opposite, broad. Flowers in umbels, lateral at the nodes of the upper 

 part of the stem, moderately large. 



Species several, chiefly South African. 



This {lenus has not been recognised by any antlior since it was established l>y 

 E. Meyer in 1837. Decaisne, Bentham & Hooker and K. Scliumann include it in 

 Gomphocarpus, D. Dietrich includes it in X y smal ohium oxidi ^chXechier \n Asclepias . 

 But the broad sessile truncate core formed by the anthers with their exceedingly 

 broad and very rigid wings, the very different coronal structure and different 

 < haracter of the fruit, appear to me to be sufficient grounds for retaining it as 

 :i distinct genus, to which, besides most of those referred to it by E. Meyer, I would 

 refer the following species : — 



P. transtaalensis , N. E. Br. (Asclepias transvaahnsis, Schlechter) ; P. 

 fnacrochilus, N. E. Br. (.4. macrochila, Schlediter) ; F. schinzianus, N.E.Br. 



