Series 2. Koehne in Engler's Jahrb. L (1880) 160. — Cf. supra p. 26. 

 U. R. decussata Hiern in Oliv. Fl. trop. Afr. II. (1874) 467 absque synon., an 

 etiam DC.?; Kochne I.e. — An Ammunnia pattandra var. drcussat'i Month, in Fl. austral. 

 III. (4866) 296? — Caulis 4— 25 cm longus, basi saepius radicans, 4gonus. Folia 



vissimae, illae lobos aequantes v. longiores; petala 0; stamina 2 — 3, ad tubi 1 / 3 v. 

 vix nltius insert a; slvlus submillus. Capsula 3valvis. — Fig. 3E, p. 33. 



Ober-Guinea: Togoland (Lome, Warnecke n. 229); Angola (Welwitsch n. 

 2339). — Falls das Bentham'sche Synonym biorhor cohort, was ich bezweifle, auch 



Nord- und Ostaustralien. 



I.;. R. illecebroides Koehne in Engler's Bot. Jahrb. I. (1 880) 161. — Ammnnma 

 pentandra var. dcrussuta Benth. in Fl. austral. III. (1866) 296 quoad exemplaria Wight 

 n. 2317. — Rotala decussata Hiern in Oliv. Fl. trop. Afr. II. (1871) 467 quoad exem- 

 plaria eadem. — Ammannia pntt'indru var. ilh<rl>roidt s Clarke in Hook. f. Fl. Brit. 

 Ind. B. (1879) 569. — Caulis circ. 10 cm longus, erectus v. basi repens radicans, 



stylus stigmati ar^uilun-us. 



Ostindien, ohne nahere Angabe (Wight n. 2317). 

 16. R. leptopetala Koehne in Engler's Bot. Jahrb. IV. (1883) 388. — R. lepto- 

 petala Koehne pro parte, ibid. I. (1 880) 162. — Caulis 8 — 30 cm longus, inferne 

 saepe radicans, 4gonus, saepe ramosus. Folia 4 — 32 mm longa, 1 — 9 mm lata, 

 e basi subcuneata v. breviter contracta lanceolata v. oblonga, raro lineari-lanceolata, 

 subretusa v. emarginata, raro obtusa. Flores 3- v. Smeri, rarius 4meri; bracteolae 

 tubo breviores v. calycem superantes; calyx 1 — 1,3 mm longus; appendices lobos 



