152 R. Knuth. — Oxalidaceae. 



Var. x. frigida Zucc. in Denkschr. Akad. Muench. IX. (I 823 — 24) 158, n. 36d, 

 in Abh. Akad. Muench. I. (1829 — 30) 23 1. — Caulis suberectus, sicut tota planta 

 canescenti-hirtus. Pedunculi subuniflori. 



Feuerland (Herb. Martius). 



Varietas australiensis: 



Var. X. Preissiana (Steud.) R. Knuth. — Oxalis Preisstand Steud. ex Lehm. PI. 

 Preiss. I. (4 8 44 — 45) 160. — Habitus dz contracto-caespitosus. Foliola usque ad 3 / 4 

 incisa; lobuli obtusi, late lineares. Capsula elongata, usque 2 cm longa. 



Australien: Gundebooka Mountain (Andrae a. 1890, n. 4 46!). Blue Mountains 

 (Hügel!). Paramatta (Leichardt a. 1842 !). Victoria (Tilden a. 4 912, n. 682!). 

 Colonie Swanriver (Preiss a. 1843, n. 1915!). 



Varietas africana: 



Var. (.i. Bingoeti (De Wildem.) R. Knuth. — Oxalis Ringoeti De Wildem, in 

 Fedde, Rep. XI. (194 3) 542. — Planta d= erecta. Folia fasciculata; foliola 3, tri- 

 angularia, 5 — 7 mm longa, 12 — 17 mm lata, basi late cuneata, apice leviter emargi- 

 nata; lobi rotundati, infra et margine sparse pilosi; petiolus circ. 3 cm longus. In- 

 florescentiae axillares; pedunculus velutinus, circ. 4 cm longus. Bracteolae lineares, 

 velutinae, usque 4 mm longae. Pedicelli velutini, circ. 4 mm longi, post anthesin 

 refracti. Calyx velutinus; sepala circ. 4 mm longa. Corolla violacea, circ. 1 cm longa. — 

 Ex affinitate 0. corniculatae L. (ex De Wildem.). 



Kongo: Ober-Katanga, Shinsenda (Ringoet, coli. Homble a. 1912, n. 440 — 

 Typus). — Blühend März. 



Nota. De biologia speciei confer Hildebrand, Lebensverh. Oxalis-Arten (1884) 17 — 18 

 ^sub nom. O. tropaeoloides hört.]; de anatomia vide Ghauvel, Rech. Oxalid. (1903) 112 — 144 

 [0. corniculata], 4 4 4-445 [O. corniculata var. purpurea], 445—446 [O. corniculata var. japonica 

 Chauv. (= triehocaulon Leveille?)]. 



235. 0. filipes Small in Britton et Brown, Fl. North. Unit. Stat. II. (1897) 346, 

 f. 2253. — Xanthoxalis filipes Small, Fl. Southeast. Un. St. (1903) 667; Small in 

 North Americ. Flora XXV. 1. (4 907) 52. — Annua vel perennis, gracilis, pilis adpressis 

 sparse pubescens. Caulis erectus, subsimplex, plerumque valde foliatus, 10 — 15 cm 

 altus. Folia longe petiolata, non stipulata vel stipuiis adnatis inconspicuis; foliola ob- 

 cordata, 3 / 4 — 4 Y 4 cm lata, inaequilata. Pedunculi graciles, folia longitudine aequantes 

 vel eis longiores, 2 — 3-flori. Flores lutei, in pseudo-umbellis dispositi. Pedicelli laxis- 

 simi, strigillosi vel glabrati, fructiferi recurvati. Sepala oblongo-lanceolata, 4V2 mm 

 longa, obtusa, pilis nonnullis apice coronata. Petala 9 mm longa, antice excisa. Cap- 

 sula 8Y2 — 13 mm longa, apicem versus gradatim angustata, saepe recurvata. Semina 

 obovoidea vel oblonga, 1 3 /4 mm longa? rugis contiguis ornata. 



Nord-Amerika, von Virginia bis Tennessee, südwärts bis Georgia und 

 Tennessee (nach Small): Washington (Steele a. 1899 — 1900!). Tennessee, Wolf 

 Creek (Kearney a. 4894, n. 1079!). Texas, Bowie Co. (Heller, PI. Texas a. 1898, 

 n. 4241!). Florida, Lake County, Eustis (Nash a. 1894, n. 118!). 



Nota. Teste autore species similis est O. corniculatae, sed statura minore et foliis saepe 

 profunde excisis praedita. 



236. 0. Brittoniae Small in Britton, Man. Fl. N. Un. St. (1901) 577. — Xan- 

 thoxalis Brittoniae Small, Fl. S. Unit. Stat. (4 903) 668; Small in North Americ. Flora 

 XXV. 4. (1907) 52. — Perennis. Rhizoma longum vel longissimum, 12 cm et ultra 

 longum, 4 — 1 3 /4 mm crassum, subsimplex, caules zh numerosos proferens, atro-fuscum. 

 Gaules zt erecti, tenues, 10 — 30 cm alti, |i/ 2 -2rara crassi, pilis laxis zb dense 

 pubescentes, demum sparsius pilosi, superne magis adpresse pilosi, herbacei, subsim- 

 plices, dense foliati. Folia alterna vel saepius rosulate congesta — rosulis paucifoliatis — , 

 trifoliolata, vix longe petiolata; foliola laete viridia, glabra, margine ciliata, rarius utraque 



