24 FLOKULA ADENENSIS. 



ambitu 1-2 ped. Rami teretes, crassi, aphylli, dichotomi. Folia et 

 fiores in apice ramorum. Corolla purpurea, li-2 unc. long.; lim- 

 bus 1 unc. latus. 



Ordo XXI. ASCLEPIADAOE^E. 



1. Stein he ilia, Decaisne. 



1. S. radians (Dene. inAnn.Sc.Nut. ser. 2. ix. p. 339) Iucana, villosa, 

 eaule erecto ; foliis subreniformibus, acutis, serratis, pulcherrime varie- 

 gatis, petiolatis ; pedunculis axillaribus, solitariis, multifloris ; flori- 

 bus umbellatis, pedicellis brevibus; calycibus 5-partitis, segmentis 

 lanceolatis, incano-hirsutis ; corolla ealyce duplo longiore, glabra, 

 limbo 5-tido, lobis erectis, lanceolatis, acutis, contortis, tubo 5 foveis 

 instructo ; folliculo ovoideo, villoso.— Asclepias radians, Forsk. Descr. 

 p. 49. 



Hub. Aden, rarissiuie, in arenosis (T. Anders.). 



Distr. In Arabia Felici ! 



Herba pereunis, odore mellis. Folia lurido-viridia, subtus violacea, 

 1 unc. longa, lj unc. lata; petiolus § unc. longus. Pedunculus 

 tomentosus, 1-2 unc. longus. Corolla 5 lin. longa, violacea. Folh- 

 culus abortu solitarius, carnosus. 



2. Glossonema, Decaisne. 



1 . G. Boveanum {Dene, in Ann. Sc. Nat. ser. 2. ix. p. 335). Incanum, 

 "foliis lanceolatis vel ovato-lanceolatis, sinuato-dentatis, crispis, 

 utrinque pubescenti-incanis ; coronse squamis apice emarginatis, medio 

 subulatis ; folliculis ovatis, attenuatis, spinis innocuis instructis." — 

 Gomphocarpus pauciflorus, Ilochst. et Steud. in PI. Scbimp. n. 920. 



Hab. Aden {Edaew). 



Distr. In Arabia Felici ! 



Herba perennis, incana. Folia opposita, linearia, lanceolata. Pedun- 

 culi extra-axillares. Pedicelli basi bracteolis setaceis instructi. 



I have not seen Edgeworth's specimen from Aden, and have therefore 

 adopted Decaisne's description, from the ' Annales des Sciences Naturelles, 

 and De Candolle's ' Prodromus,' vol. viii. p. 554. 



Ordo XXII. CONVOLVULACE.E. 

 1. Convolvulus, Linn. 



1. C. glomeratus (Chois., DC. Prod.ix. p. 401). Caulibus prsemiiltis, 

 prosrratis, teretibus, gracilibus, pilis adpresssis pubescentibus ; foliis 

 hastato-lanceolatis, acutis, mucronulatis, petiolatis ; glomerulis axil- 

 laribus ; pedunculis folio duplo longioribus ; bracteis foliaceis, lanceo- 

 latis, villosis.calycem paulo superantibus; scpalis ovato-lanccolatis, fus- 

 co-villosis; corolla calvce longiore, glabra ; rapsulis globosis ; semi- 



