Oxalis. 135 



24 2. 0. clematodes D. Smith in Coult. Bot. Gaz. XVIII. (1893) 198. — Xan- 

 thoxalis clematodes (D. Smith) Small in North Americ. Flora XXV. 1. (4907) 56. — 

 Procumbens vel scandens, paucicaulis, 30 — 60 cm longa. Caulis circ. 2 mm crassus, 

 sulcatus, praecipue superne dense pubescens, inferne remote superne dense ramulis bre- 

 vibus folia gerentibus obsitus, zb longe productus, sed sublignosus; ramuli foliati 2 — 

 8 cm longi, cauli consimiles. Folia pauca caulina, pleraque ad apices ramulorum (circ. 

 4 — 8-na) congesta, trifoliolata, satis breviter petiolata; foliola facie utraque — praecipue 

 inferiore — pilis mollibus longis adpressis dense hirsuto-pubescentia, subtus pallidiora, 

 usque 1 3 mm longa et 1 mm lata, e basi zb cuneata obovata, apice rotundato sub- 

 integra vel parum profunde emarginata, exs. papyracea, sessilia ; lateralia foliolo medio 

 similia, sed non raro leviter obliqua; petiolus \ l / 2 — 2 72 cm longus, foliolis 1 — 2 1 /2~Pl° 

 longior, exs. */ 2 mm crassus, dense subhirsutus, stipulis destitutus. Pedunculi axillares, 

 zb numerosi, erecti, exs. 3 / 4 mm crassi, sicut pedicelli bracteae calyxque hirsuti, 3 — 

 4*/| cm longi, apice cymam 1 — 4-floram gerentes, petiolis 1 — 2 1 /2 _ pl° longiores. Brac- 

 teae anguste lineares, 1 y 2 — 3 mm longae, acutae. Pedicelli 2 — 8 mm longi, pedun- 

 culis 2-plo angustiores; frucliferi non refracti. Sepala i l / 2 — 5 mm longa. Petala lutea, 

 10 — 14 mm longa. Filamenta omnia pubescentia. Capsulae cylindrico-conicae , 6 — 

 7 mm longae, acutae, dense strigillosae, sepalis 1 y 2 — 1 3 / 4 -plo longiores. 



Guatemala: Dept. Quiche, San Miguel Uspantan, 2100 m (Heyde et Lux in 

 D. Smith, Ex pl. Guatem. a. 1892, n. 2992 — Typus!). — Blühend und fruchtend April. 



213. 0. lucumayensis R. Knuth in Fedde, Rep. XXIII. (1926) 144. — Ascendens 

 vel pro parte procumbens; ramus obvius 40 cm longus, sicut folia et inflorescentia pilis 

 brunneo-luteis tomentosus, exs. 5 mm crassus, fere carnosulus. Folia maxima; foliola 

 omnia sessilia, satis exacte oblonga, lateralia parum obliqua, saepe 6 cm longa, 3y 2 cm 

 lata, antice sinu acuto 5 mm profundo incisa, itaque apice modo characteristico bi- 

 lobata; foliolum medium basi db cuneatum; lateralia basi oblique rotundata; omnia 

 supra modice, infra dense brunneo-sericeo-tomentosa; petiolus usque 9 cm longus et 

 2 mm latus, dense brunneo-tomentosus. Stipulae parum evolutae, petiolo plane ad- 

 natae. Pedunculi saepe 9 cm longi, petiolis consimiles, apice umbellam 8-floram ge- 

 rentes. Bracteae lineares, sicut pedicelli dense brunneo-tomentosae. Flores in umbella 

 inaequaliter evoluti. Sepala lanceolata, 8 mm longa, zb hirsuta. Petala sepalis 2-plo (?) 

 longiora, spathulato-ovata(?), saturate lutea. 



Peru: Lucumayo-Tal, 1800 — 3600 m (Cook et Gilbert, Fl. Peru a. 1915, 

 n. 1351 — Typus in U. St. Nat. Herb. n. 604531!). — Blühend Juni. 



214. 0. fruticetorum Diels in Engler's Bot. Jahrb. XXXVII. (1906) 424; Weber- 

 bauer, Pflzwelt. peruan. Anden (1911) 261, nomen. — Procumbens vel in fruticetis 

 scandens. Caulis 60 — 100 cm longus, 2 — 2V2 mm crassus, sublignosus, rubro-brunneus, 

 inferne glaberrimus, superne pilis patulis zb sparsim obsitus, sparsim ramosus ramis 

 divaricatis tenuibus sublignosis dz elongatis, inferne plerumque foliis denudatus, superne 

 zb dense foliatus et pedunculis sat numerosis ornatus. Folia omnia caulina et ramu- 

 lina, alterna, trifoliolata, breviter petiolata; foliola circ. 7 mm longa et 5 — 6 mm lata, 

 e basi leviter angustata obovata, antice sinu obtuso vix profunde incisa, omnia sessilia 

 et zb aequiformia, facie inferiore et margine dz hirsuta, facie superiore zb glabra; 

 petiolus circ. 1 cm longus, foliolis 1 — 1 Y^plo longior, exs. y 2 mm crassus, dz hirsutus, 

 ad basin stipulis usque 5 mm longis et usque ad 3 / 4 adnatis suffultus; partes liberae 

 stipularum lanceolatae. Pedunculi axillares, omnes caulini, plerumque foliis 2 — 4-plo 

 longiores, 3 — i 1 ^ cm longi, exs. 3 / 4 mm crassi, zb erecti, sicut pedicelli calyxque 

 sparsim patule pilosi, apice umbellam dissolutam 4— 6-floram gerentes. Bracteae 1 — 

 2 mm longae, subulatae, hirsutae. Pedicelli 7 — 10 mm longi, tenues. Flos circ. 14 — 

 1 5 mm longus. Sepala oblongo-lanceolata, apice obtusa vel rotundata, margine hya- 

 lina, 5^2 — 6 mm longa. Corolla sepalis 2V2~P'° longior; petala e basi angustata late 

 cuneata, antice retuso-rotundata, lutea, rubello-nervata. Stamina maiora sepalis vix 

 longiora. 



Peru: Dept. Cajamarca, Hualgayoc, bei der Hacienda La Tahona im geschlossenen 



