356 R- Knuth. — Oxalidaceae. 



manifeste glauca, praecipue subtus celluloso-lacunosa, glabra; medium dz rotundatum, 



3 mm diain., basin versus late cuneatum; lateralia rotundato-ovata, obliqua; petiolus 



4 y 2 — 2 cm longus, fere dilatatus, glaber vel pilis minutis hyalinis obsitus. Flores vix 

 numerosi, 2 — 6. Pedunculus petiolis plane conformis, 1 y 2 cm longus, 4 mm infra 

 florem bracteis 2 lanceolatis membranaceis obsitus. Sepala 3^2 — 4 mm longa, zb late 

 ovata, obtusa, apice callis minutis pluribus atro-violaceis notata, glabra. Petala sepalis 

 5 — 6-plo longiora, usque 18 mm longa, lutea, e basi longe unguiculata, demum late 

 dilatata, antice fere retusa. Floris mediostylosi styli sepalis 2-plo longiores; stamina 

 majora sepalis 3-plo longiora, minora eis circ. aequilonga; stamina stylique glabra. 



Deutsch-Südwest-Afrika: Vahldorn (Dinter a. 1924, n. 5182 — Typus!) 



715. 0. aurea Schlechter in Engler's Bot. Jahrb. XXVII. (1900) 153. — 0. chry- 

 santha Schlechter in sched. — Acaulis. Rhizoma usque 8 cm longum, fuscum, satis 

 robustum, subterraneum, verticale, zb tortuosum, radicibus brevibus paucis fibrillosis 

 tortuosis instructum, circ. 2 — 3 mm crassum, squamis magnis semiamplexicaulibus 

 membranaceis fuscis late ovatis apice acutis vel rotundatis usque 5 mm longis satis 

 dense obsitum. Folia basalia, zb numerosa, 5 — 15, rosulata, petiolata; foliola 3, glabra, 

 raro margine ciliata, db glauca, usque 1 mm longa et lata, e basi late cuneata rotun- 

 data, margine anteriore levissime incisa, crassiuscula, angustissime marginata, non calloso- 

 tuberculata; petioli usque 2V2 cm l° n gi? foliolis M/2 — 272~pl° longiores, crassiusculi, 

 pilis articulatis hyalinis hirsuti, basi squamis rotundato-ovatis zb numerosis 5 — 6 mm 

 longis membranaceis fuscis glabris suffulti. Pedunculi basales, petiolis 1 — 2-plo breviores, 

 indumento citato hirsuti, y 2 — 2Y2 cm ^ on Sh m specim. 4 — 10, infra calycem bracteis 

 1 — 2 lineari-elongatis vel subulatis 3 mm longis membranaceis fuscis obsiti. Sepala 

 6 — 7 mm longa, lineari-lanceolata vel lanceolato-elongata, acuta, apice non callosa, hirsuta. 

 Corolla conica, 25 mm longa, sepalis ö 1 ^ — 7-plo longior, intense lutea; tubus a limbo 

 non discretus; petala e basi cuneata late dilatata, margine anteriore retuso-rotundata. 

 Stamina maiora sepalis 1 1 / A — < V2~P^° longiora. 



Mittleres Karroides Hochland: Modderfontein, 130 m, an sandigen Stellen 

 (Schlechter, Austro-afric. a. 1896, n. 7967 — Typus in herb. Berol.!). 



716. 0. stenoptera Turcz. in Bull. Soc. Nat. Mose. XXXI. 4. (1858) 433. — 

 O. glaueo-virens Sonder in Harv. et Sond. Fl. Cap. I. (1859 — 60) 336. — Acetosella 

 glauco-virens (Sonder) 0. Kuntze, Rev. Gen. I. (1891) 91. — Acaulis; petioli pedunculi 

 calyxque zb pilosi, pilis simplieibus et glandulosis. Foliola euneato-rotundata vel euneato- 

 obeordata, supra glaueoideo-viridia glabra, subtus opaca, margine sparsim glanduloso- 

 pilosa, usque 8 l /2 mm longa et 6y 2 mm lata, margine anteriore acute incisa; petioli 

 1 y 4 cm longi. Pedunculi foliis aequilongi vel breviores, supra medium bracteolis 2 

 setaeeis oppositis instrueti. Sepala lanceolata, ± patula, quam corolla 6 — 7-plo breviora. 

 Corolla 18 — 25 mm longa, basi lutea; limbus pallide luteus, extus plerumque violaceo- 

 marginatus. 



Südliches britisches Namaqua-Land: Zwischen Eenkoker und Bitterfontein 

 an sandigen sumpfigen Stellen (Zeyher n. 239 — Typus). — Blühend Mai. 

 Nota: Species ob formam foliorum O. tenellae Jacq. similis est. 



Subsect. 3. Obcordatae R. Knuth. 



Series a. Lanatae R. Knuth. 



Acaules vel stipitatae. 



A. Pedunculi glabri vel pilis simplieibus obsiti. 

 a. Foliola pubescentia vel hirsuta vel glabra. 

 a. Corolla purpureo-violacea. 



I. Foliola margine non calloso-tuberculata. 

 1. Sepala non calloso-tuberculata. 



* Petioli peduneulique pilis patenti-crispis vel irre- 

 gulariter patentibus obsiti, rarius subglabri. 



