Didesmus, Otocarpus. 265 



südlichen Tunesien: häufig, z. B. bei El Djem (G. Schweinfurth n. 199 — im April 

 blühend und fruchtend), Sfax (G. Schweinfurth n. 200, Dupouret), Gabes (C. J. Pi- 

 tard, PI. Tun. n. 30 — im Februar blühend und fruchtend). Tripolitanien: bei 

 Tripolis, Kasr Jefren usw. (G. Ad. Krause n. 165, 800 — 806, G. Rohlfs n. < 3, 

 Stecker), Ghiran (R. Spigai, Taubert n. 81), Sokna (R. Spigai). 



Die Angabe für Cypern (Unger u. Kotschy, Insel Cypern [1865] 333) ist irr- 

 tümlich. 



Species dubia. 



Didesmus panduriformis Stocks, Vegetat, Scinde in Proeeed. Linn. Soc. Lond^ 

 I. (1849) 367, nomen. 



Species excludendae. 



r 



Didesmus myagroides Desv. Journ. Bot. HI. 4. (1814) 16 = Erucaria myag- 

 roides (L.) Hai. 



D. pilosus Steudel, Nomencl. bot. 2. ed. I. (1840) 505 (sphalm.) = Didiscus 

 2)ilosus Benth. 



D. pinnatus DG. Syst. II. (1821) 659 = Erucaria myagroides (L.) Hai. 



27. Otocarpus Durieu. 



Otoearpus*) Durieu de Maisonneuve, Especes nouv. Alg. H. in Duchartre, Revue 

 Bot. II. (1846—1847) 435 et in Explorat. scient. Alger. Bot. (1855) t. 77; Cosson, 

 Comp. Fl. atlant. II. (1885) 100 et 318. — Rapistrum sect. Otocarpus Hook. f. in 

 Benth. et Hook. f. Gen. I. 1. (1862) 99; Prantl in Engl.-Prantl, Pfizfam. III. 2. (1890) 

 181; Dalla Torre et Harms, Gen. Siph. (1901) 186; v. Hayek in Beih. Bot. Centralbl. 

 XXVII. 1. Abt. Heft 2 (1911) 264. 



Sepala ei'ecto-patentia, omnia aequilata, oblonga, exteriora sub apice vix cornuta, 

 interiora basi haud saccata. Petala flava; lamina oblongo-obovata, paucivenosa, apice 

 rotundata, in unguiculum sensim angustata. Glandulae nectariferae laterales depressae, 

 medianae brevissime stipitiformes. Stamina 6 ; antherae oblongae, obtusae. Pistillum 

 cylindricum ; gynophorum nulluni; articulus inferior brevis (1 mm), 1-, rarissime (sec. 

 Cosson) 2-ovulatus, superior aequilongus, etiam 1-ovulatus, ad apicem in stylum triplo 

 longiorem attenuatus; stigma depresso-capitatum, subbilobum. Siliculae biarticulatae, 

 tandem sublignoso-induratae, septigerae; articulus inferior compresso-cylindricus, longi- 

 tudinaliter obscure striatus, apice excisus et alalo-marginatus, indehiscens, persistens, 

 monospermus, intefdum sterilis, rarissime (sec. Cosson) in locellos duos superpositos 

 monospermos divisus ; articulus superior inferiore latior, indehiscens, compresso-ovoideus, 

 dorso utroque ala transversim posita rectangule patente semiorbiculata 2,5 — 3 mm diam. 

 margine undulata et tandem recurvata elevatim striata supra concava membranaceo- 

 coriacea auriculatus, ad apicem in rostrum compresso-tetragonum pugioniforme rectum 

 attenuatus, monospermus, vix separabilis. Semina in articulo inferiore pendula, oblongo- 

 ellipsoidea, 1,5 mm longa, in articulo superiore erecta, aequilonga, sed breviter ovoidea, 

 omnia dilutc brunnea, ad hilum nigra; testa laevis; funiculus brevis, linearis. Coty- 

 ledones longiludinaliter conduplicatae, sessiles, apice emarginatae. — Herba annua. 

 Radix palaris. Caulis inferne hispidus, superne pubescens, ramosus. Folia lyrato- 

 pinnatipartita. Racemi nudi. Pedicelli breves. 



Species unica singularis in Algeria occidentali solo argilloso crescens. 



0. virgatus Durieu in Duchartre, Revue Bot. II. (1846 — 1847) 436 et in Explorat. 

 scient. Alger. (1855) t. 77; Godron, Fl. Juvenal. 1. ed. (1853) 9, 2. ed. (1854) 60; 

 Cosson, Comp. Fl. atlant. II. (1885) 318; Batt.' et Trab. Fl. synopt. (1902—1904)21. 

 — Rapistrum virgatum Pomel, Nouv. Mater. Fl. atl. (1874) 357; Thellung, Fl. advent. 

 Montpell. (1912) 274. — CauHs erectus, 0,05 — 0,30 m alt., superne vel a basi ra- 

 mosus, teretiusculus, interdum pallide violaceus, inferne pilis longiusculis 1 — 2 mm longis 



I 



Norpen e verbis graecis mg (auris) et xuonös (fruclus) formatum. 



