i 



170 



217. R. apetalus i'()ir. Kncycl. melh. Bol. VI, 212 (1801). 

 R. borbonicus Pers. Synops. pl. II, 51 (1807). 



R. i'.vsuccits Sleud. (in Pl. Schimp. Abyss. sect. II 867), A. Richard Tent. Fl. Abyss. I p. 256 (1847). 



Hanii floriferi cum petiolis dense cano- vel gilvo-tomentosi, aculeisparvis reclinatis instructi. Folia 

 septenalo- vel quinato-pinnata, suprema ternata, raro simphcia. in inflorescentia in bracteas abcuntia; 

 slipulae anjJuste lineares: foliola oblongo- vel ovato-Ianceolata, inaeciualitcr argute serrata, ulrinque 

 fere lO-cosl^^ulala, supra dense canescenti-tomentosa, subtus prominule penninervia, albo- vel albido- 

 tomentosa, lerminale vix majus quam reliqua, fere 3-4 cm longum. Inflorescentia terminalis saepe 

 ampla, deiisa, e ramulis subracemosis vel corymbosis mullifloris composita, apicem versus decrescens. 

 Ramuli pedunculique dense flavescenti-tomentosi, subinermes vel aculeolati; florcs sat parvi; calyx 

 externe cano-tomentosus, profunde partitus; cupula parva plana: sepala lanceolata. fere 0,8 cm longa, 

 fructum amplectentia; ])etala in floribus plurimis nulla, in aliis pauca minuta; carpclla sat numerosa, 

 laxe vel densius villosa, inlerdum subglabra. 



Indumentum pilosum et tomentosum variabilc, praecii)uc in foliolorum facie el in carpellis, 

 quae in planta abyssinica (R. exsucco) glabra dicuntur. 



/?. ()«rtr///H(/n(;.s A. Rich. Tenl. Fl. Abyss. 257 (1817), in Abyssiniae provincia Schire lectus, 

 formam minorem R. apelali sistere videtur. 



Zorstreut in Gebirgen des tropischcn Ostafrika und auf den benachbarten Inseln im Indischen 

 Ozean. Madagascar; Mascarenen; Abessinien; Tschiradsura-Gebirge in Mozambique (Kirk). 



218. R. Ecklonii Focke in Abh. Nat. Ver. Bremcn IV, 17 1, 176 (1871). 



Turiones, rami petiolique tomentoso-villosi, aculeis falcatis robustis muniti. Folia turionum 

 pinnalo-ciuinala et septenata, illa ramorum quinata. su])rema ternata; foliola omnia (laleralia breviter) 

 l)etiolukila, magna (diam. 8,0 : 3,5 cm), oblongo-elliptica, utrincpie 10 — r2-costuIata, irregulariter inciso- 

 dentata, supra tomentoso-puberula, sublus tomentoso-hirta, subvelutina et canescentia, demum virentia, 

 Stipulae filiformes. Inflorescentia in ramis terminalis, conferta, floribus paucis vel sat numcrosis. 

 Bracteae lineari-lanceolatae; calyx usque ad basin fere partitus; sepala externe virentia, lanceolata 

 vel mucronata, post anthesin fructui applicata, demum patentia. Carpella complura, rugosa, apice pilosa. 



In buschigen Gebirgskliiften des ostlichen Siidafrika, insbesondere bei Nieuwepost am Katrivier 

 und auf dem Spitzkop unweit Leidenbiyrg gesammelt. 



219. R. arabicus Schwnf. in Bull. Flerb. Boiss. IV aap. II p. 201 (1896). 

 Diagnosis autoris: 



,,Ramis teretibus semper tomentosis glandulisque valide stipitatis ad summitates saepe crebriori- 

 bus irregulariter conspersis, aculeis mediocribus numerosis retrorsum subrectis vel leviter recur\is; 

 foliolis saepe trijugis, plerumque 3—5, subconcoloribus supra glabratis subtus tomentosis v. pubes- 

 centibus ovato-oblongis acutis rarius ovatis saepe breviter cuspidatis duplice serratis, stipulis petioli 

 aculeati basin subsessilibus lineari-lanceolatis; glandulis intcr tomenlum rhachidis nerviumque paginae 

 inferioris saepe numerosis: sepalis lanceolatis acutis saepe cuspidatis ad fructum maturum reflexis, cum 

 pedicellis tomentosis plerumque glandulis longe stipitatis purpureis inslructis saepe numerosissimis; 

 petahs albis obovatis apice subemarginatis calycem plerumque subaeqantibus; carpellis maturis pulposis 

 aterrimis nitidisque glaberrimis." 



Foliolorum diam. 4 : 6 vel 5:9; aculei 0,4—0,6 cm longi, sepala 0,8 — 1,2, petaln 0,8 cm longa. 

 Fructuum diam. fere 1 cm. 



.I-^mcn. Terrassengemauer in der Kaffeeregion, in 900-2200 m Flohe. 



