Biophytum. 415 



45. B. robustum Scott Elliot ex Guillauraia in Bull. Mus. d'hist. nat. Paris XV. 

 (1909) 4 26. — Teste Guillaumin aÄ Commersonii tantum distinguitur sepalis 5- et 

 non 3-nerviis, bracteis multo magis congestis, pedicellis brevioribus. 



Madagaskar: Fort Dauphin (Scott Elliot n. 3079 — Typus). 



46. B. myriophyllum (0. Hoffm.) R. Knuth. — Oxalis myriophylla 0. Hoffm. in 

 Bremen, Abh. VII. (1882) 243. — Caulis tenuis, dz tortuosus, lignosus, 2 mm crassus, 

 glaber, simplex vel parce ramosus, apice in ramulos brevissimos divisus. Folia verticillata, 

 10 — 15 in verticillo, saepe 25 — 50-juga; petiolus tenuissimus, capillaris, glaberrimus 

 vel pilis sparsissimis obsitus; foliola omnia fere aequalia, 3X1% mm ma g Q a, ± rectan- 

 gularia, m argine antico manifeste in apiculum (apicem folii versus directum) producta, 

 basi retusa vel in apiculum (basin folii versus directum) minutum prolongata, glaberrima, 

 subtus manifeste pallidiora, supra opaca. Pedunculi e verticillis foliorum provenientes, 

 (cum pedicellis) ea longitudine vix aequantes, circ. 8 cm longi, sicut pedicelli calyxque 

 glaberrimi, capillares, dz tortuosi, 2 — 3-flori. Bracteae lineari-subulatae vel subulatae, 

 acutae, usque 1 mm longae, globoso-coacervatae, globulo iy 2 mm diam. Pedicelli 

 8 mm longi, tenuissime capillares, tortuosi. Sepala lanceolata vel ovato-lanceolata, acuta, 

 valide 3-nervata ; 2 mm longa. Petala sepala multo excedentia, rosea. 



Madagaskar: Ivonoruzona Wald(?) (Rutenberg a. 4 877 nach 0. Hoffmann 

 — Typus). Südlich von Ambatondrazaka (Rutenberg a. 4 877 nach 0. Hoffmann — 

 Typus). 



47. B. macropodum Baker in Journ. Linn. Soc. XXI. (1884) 328; Guill. in Bull. 

 Mus. d'Hist. nat. Paris XV. (1909) 126. — Oxalis chamaecrista Baill. in Bull. Soc. Linn. 

 Paris I. (1886) 597. — Caulis elongatus, lignosus, simplex, 60 cm altus. Folia apice 

 caulis dense congesta, ambitu linearia, pinnata, breviter petiolata; foliola conferta, 40 — 50- 

 juga, quadrata, basi auriculata, apice oblique cuspidata, 4 — 5 mm lata, reflexa, rigida, 

 utrinque viridia, nervo medio excentrico percursa, venulis erecto-patulis. Pedunculi graciles, 

 foliis 2 — 3-plo breviores. Bracteae multae, minutae, congestae. Pedicelli glandulis pro- 

 minentibus atris instructi, rugosi, 3y 3 mm longi. Sepala ovato-lanceolata, conspicue 

 nervata, fructu globoso breviora, 3Ys mm l° n g a ) 3-nervata. Capsula 4 mm diam. Styli 

 hispidi, quam Capsula 2-plo breviores (sec. Baker). 



Madagaskar (Baron n. 2307 — Typus): Antsianaka (Humblot n. 403 — Typus 

 der Oxalis chamaecrista). 



Nota. Specimen Humblotii [Typus O. chamaecristae] teste Guillaumin ad B. macro- 

 podum adnumerandum est. Diagnosis autem cum hoc specimine parum congruit. 



48. B. aeschynomenifolium (0. Hoffm.) Guillaum. in Bull. Mus. d'hist. nat. XV. 

 (1909) 124. — Oxalis aeschynomenifolia O. Hoffm. in Bremen, Abh. VII. (1882) 244; 

 Baill. in Bull. Soc. Linn. Paris I. (1886) 597. — Suffrutex, usque 100 cm altus, scandens. 

 Caulis lignosus, basi saepe 7 mm crassus, cortice atro-fuco obtectus, glaber, sparsim 

 ramosus, ramis longis satis tenuibus. Folia verticillata, verticillis numerosis, inter se 4 — 

 1 2 cm distantibus ; folia 7 — 10 in verticillo, plerumque 25 — 35-juga; petiolus capillaris, 

 tomentosus ; foliola omnia fere aequalia, lineari-acuminata, basi vix 1 mm lata et retusa, 

 apice acuta vel acutissima, glabra, utrinque laete viridia. Pedunculi nulli. Bracteae 

 lineares vel lineari-subulatae, acutae, hirsutae, 1 ! / 2 — 2 mm longae, in axillis foliorum 

 globoso-coacervatae. Pedicelli 3 — 4 mm longi, filiformes, tomentosi. Sepala glabrescentia, 

 ovata vel lanceolato-ovata, acuminata, acuta, parum valide nervata, 4*/a mm longa, 

 margine anguste membranacea. Petala alba, sepalis duplo longiora, obovata. Capsula 

 calyce brevior. — Fig. 25 C. 



Central-Madagascar: Efitra (Rutenberg a. 1877 — Typus!). Uferwald des 

 Marokolöi bei Antananarivo (Hildebrandt, Fl. Centr.-Madag. a. 1880, n. 3468! Baron 

 n. 4903 nach Guillaumin; Perrier de la Bäthie n. 648 nach Guillaumin). 



