230 BOTANY OF SOCOTRA. 



we obtain three groups into which, it appears to me, the forms of the species 

 naturally fall. They are the following : — 



a. totu holosericeo pubescens. 



This includes //. polymorpha, E. Meyer, and is the common Cape form. It 

 has also been found in Zambesi land. 



b. denudata, Nees. 



Minor glabra v. subglabra ; foliis plus minusve lanceolatis ad extremitates utrosque 

 attenuates ; spicis floribus paucioribus ; calyce longiore ; disci lobis ovarium excedentibus. 



Includes H. Forskalei, R. Br. and H. Rothii, T. Anders. 



This form occurs in south Africa, and is the Abyssinian and Arabian type 

 of the species. It is noticeable that the calyx nearly equals the involucre- 

 bracteoles, and that the lobes of the disk, especially in Abyssinian plants, much 

 exceed the ovary. 



c. mollis, Balf. fil. in Proc. Roy. Soc. Edin. xiii. (1883). 



Molliter velutina v. velutino-pubescens albida ; foliis longius petiolatis plus minusve ellipticis 

 v. late ovatis basi late cuneatis ; spicis densis pilis longis birtis ; calyce minore. 



Includes II. mollis, T. Anders., probably H. Forskalei, var. ccmescens, Franch., 

 and probably H. clinopodia, Nees. This latter I have not seen, but the descrip- 

 tion indicates its position in this sjDecies. 



This is the third variety and the one we constitute. It embraces the form 

 from Angola and east tropical Africa, probably also a Cape form, and our 

 Socotran plant. The Socotran specimens are more velvety than the African, 

 which are rather velvety-pubescent. 



Our specimens, n. 514, approach somewhat the type a. 



2. H. pubescens, Balf. fil. in Proc. Roy. Soc. Edin. xii. (1883), 89. 



Annua parva pubescens ; foliis petiolatis ovatis ; cymis paucifloris terminalibus v. axillaribus ; 

 bracteolis involucri 4 imequalibus calyce longioribus exterioribus majoribus ; corolla 

 resupinata, labio postico longe mucronato ; capsula pubescente. 



Fedalis v. semipedalis pubescens. Folia breviter petiolata ovata v. elliptica v. elliptico-ovata £-1 

 poll, longa J— J poll, lata acuta v. obtusa apice sa-pius rotundata basi parum angustataintegra 

 dense pubescentia subtus pallidiora, petiolo \- J poll, longo. Gemmw villospe. Mores srepe 

 in axillis solitarii v. in cymas spicatas breves paucifloras terminales v. axillares dispositi ; 

 bractea? subspatbulat;e v. anguste obovatsc \ poll, longse. Involucrum florem unum 

 includens, bracteolis exterioribus £ poll, longis majoribus glanduloso-pubescentibus ad 

 medium connatis parte libera lineari-obtusa, interioribus \ poll, longis angustioribus 

 oblanceolatis acutissimis lateraliter membranaceis nervo medio prominulo. Calyx \ poll, 

 longus membranaceus intus strigulosus extus puberulus per partem trientem 5-fidus, laciniis 

 longe acutis. Corolla resupinata §-| poll, longa dilute rosea v. alba, tubo £ poll, longo 

 intus glabro extus piloso-puberulo ab medio abrupte reflexo, labio postico obCuneato eroso 

 dent at o emarginato cum mucrone longo sub anthesin recurvato, antico postico longiore 

 breviter trilobato lobis obtusis. Stamina limbo corolhe subaqualia v. longiora, filamentis 



