Oxalis. 153 



facie sparsim strigillosa, zb tenuia, sessilia, inter se aequalia, saepe 9 mm longa et 

 1 1 mm lata, latissime vel potius obreniformi-obcordata, antice sinu acuto usque ad y 5 

 incisa, lobis rotundatis; petiolus saepe 3 — 4 cm longus, foliolis 4 — 6-plo longior, exs. 

 vix 1 / i mm crassus et fere filiformis, satis strictus, sparsim pubescens; stipulae nullae. 

 Pedunculi ex axillis foliorum mediorum et superiorum provenientes, caules parum su- 

 perantes, petiolis longiores, circ. 4 cm longi, exs. i / 2 mm crassi, zb adpresse pubes- 

 centes, apice cymam 1 — 4- saepe 2-floram gerentes. Bracteae lineari-subulatae vel 

 subulatae, acutae, 2 mm longae, minute pubescentes. Pedicelli pilis adpressis strigillosi, 

 inaequilongi, 5 — 12 mm longi, fructiferi non refracti. Sepala 3 — 4^2 ram l° n ö a < sparsim 

 pubescentia, =t linearia, acuta. Petala pallide lutea, 5 — 10 mm longa. Filamenta 

 maiora pubescentia. Capsulae zblaxae, 8 — 12 mm longae, minute et sparsim pubescentes, 

 apicem versus dh sensim attenuatae. 



Atlantisches Nord-Amerika, von Massachusetts bis Missouri und Florida: 

 New York, Staten Island (Typus; Jacquemont a. 1827!), Bronx Park (Nash, From 

 the New York Bot. Gard. a. 1896, n. 409!), Richmond (Heuser a. 1903!/. Philadelphia 

 (Bernhardü). Baltimore (Brenning a. 1898, n. 545!). Massachusetts (Janet a. 1915, 

 n. 28!). Pensylvania, Lancaster Co. (Heller a. 190l!). Maryland (Blake a. 1926, 

 n. 9407!). — Fruchtend Juli. 



237. 0. macrantha (Trel.) Small in Bull. Torrey Bot. Club XXIII. (1896) 268. — 

 O. corniculata macrantha Trel. in Mem. Bost. Soc. Nat. Hist. IV. (1888) 88. — Xan- 

 thoxalis macrantha (Trel.) Small, Fl. S. E. Unit. Stat. (1903) 667; Small in North 

 Americ. Flora XXV. 1. (1907) 52. — Perennis, erecta vel demum ascendens. Gaules 

 plures, 10 — 30 cm alti, interdum manifeste elongati, =b dense strigillosi, herbacei, sub- 

 simplices, satis dense foliati. Folia alterna, apicem versus magis congesta, trifoliolata, 

 satis longe petiolata; foliola viridia, glabra, aut non raro margine ciliata et utraque 

 facie pilis paucis adpressis obsita, =b tenuia, sessilia, inter se aequalia, usque 1 3 mm 

 longa et 1 6 mm lata, saepe minora, late obcordata, antice sinu acuto circ. usque ad 

 y 4 incisa, lobis rotundatis; petiolus usque S 1 /^ cm longus, foliolis 4 — 6-plo longior, 

 exs. l U mm crassus, fere strictus, sparsim pubescens; stipulae nullae. Pedunculi axil- 

 lares, praecipue ex axillis foliorum mediorum, inferiores longiores, caules parum su- 

 perantes, usque 7 cm longi, exs. 3 / 4 — 4 / 5 mm crassi, sparsim adpresse pubescentes, 

 apice umbellam simplicem 2 — 3-floram gerentes. Bracteae zb lineari-subulatae, acutae, 

 3 mm longae, dense pubescentes. Pedicelli pilis adpressis =b dense strigillosi, circ. 

 10 mm longi; fructiferi refracti. Sepala 4*/j — 5*/2 mm l° n g a > subglabra, anguste lan- 

 ceolata, acuta. Petala =b aureo-lutea, 10 — 20 mm longa vel minora, anguste cuneata, 

 margine antico rotundato-retusa, sepalis 2-plo vel ultra longiora. Filamenta maiora 

 non appendiculata, pubescentia. Styli pubescentes. Capsulae columnares, satis robustae, 

 10 — 18 mm longae, tomentulosae, vix sensim acuminatae. 



Atlantisches Nord-Amerika, von Georgia über Florida, Mississippi und 

 Arkansas bis Texas: Texas, bei Glouston (Bush, PI. of Brazos River a. 1 899, n. 5!), 

 bei Weatherford (Tracy, PI. Gulf States a. 1902, n. 8066!). — Blühend und fruch- 

 tend April. 



238. 0. interior (Small) R. Knuth in Notizbl. bot. Gart. Berlin VII. (1919) 300. — 

 Xanthoxalis interior Small, Fl. Southeast. Un. St. (1903) 668; Small in North Americ. 

 Flora XXV. 1. (1907) 53. — - Caules plerumque solitarii, 30 — 60 cm alti, villosi. FoJiola 

 intense viridia, 20 — 30 mm diam., non raro minora, strigillosa, =b ciliata. Cymae 

 exacte dichotomicae, ramis nonnullis saepe suppressis. Pedunculi elongati, folia longi- 

 tudine superantes. Pedicelli strigillosi, fructiferi erecti vel ascendentes. Sepala oblonga 

 vel oblongo-lanceolata, circ. 4 mm longa, apice ciliata. Petala 6 — 9 mm longa, pallide 

 lutea. Filamenta maiora superne sparsim ciliata. Capsulae satis graciles, 8 — 1 mm 

 longae. 



Atlantisches Nord-Amerika: Missouri und Arkansas, in Wäldern und an 

 schattigen Hügelhängen (nach Small). 



239. 0. colorea (Small) R. Knuth in Notizbl. bot. Gart. Berlin VII. (1919) 300. — 



