32 Hermann Wolff. — Umbelliferae-Apioideae-Ammineae heteroclitae. 



2. R. Burchellii (Hook, f.) Drude in Engl. u. Prantl, Pflzfam. III. 8. (i 898) 179. — 

 Lichtensteinia Burchellii Hook. f. in Hook. Ic. pl. ser. 3. I. (XI.) (1867 — 71) 2 4, 

 t. 1033; Mellis, St Helena (1875) 278, t. 33. — Sium Burchellii (Hook, f.) Hemsl. in 

 Report, sc. result. voy. Challeng. I. 2. (1885) 68. — Caulis erectus, elatus, ut videtur 

 usque metralis, leviter flexuosus, teres, nodosus, subtiliter striatus, fistulosus, basi suf- 

 fruticosus, usque 6 mm crassus, foliosus, inferne simplex, superne remote ramosus, 

 ramis striatis flexuosis, diehotome ramulosis. Folia in sicco firma usque tenuiter coriacea, 

 basalia et caulina inferiora petiolata, petiolo brevi, late vaginanti-amplexicauli, foliaceo- 

 stipulato; lamina ambitu lanceolata vel ovato- lanceolata, petiolum versus manifeste 

 angustata, usque 20 cm longa, usque 7 cm lata, simplici- usque bipinnatisecta, pinnis 

 impari-1 — 12-jugis, inter se valde approximatis , exquisite imbricatis, mediis longis- 

 simis, inferioribus cito, superioribus sensim decrescentibus, ima plerumque a ceteris longe 

 remota, omnibus sessilibus, inferioribus indivisis vel basi uni- vel bilobatis vel foliolis 

 1 — 2 minoribus cum eis pinnae oppositae decussatis auctis, pinnis mediis usque 3,5 cm 

 longis, usque 2,5 cm latis, zt profunde pinnaülobis vel manifeste pinnatisectis, im- 

 pari-1 — 2( — 3)-jugis, pinnulis primariis secundariisve e basi cordata ovatis, acuminatis, 

 acutissimis, pinnula secundaria quacumque impari persaepe ad basin uni- vel bilobata, pin- 

 nulis omnibus margine toto argute serrato-dentatis, dentibus e basi latiuscula subito 

 angustatis, subpungenti-acuminatis, divaricatis usque subreflexis; folia caulina superiora 

 cito decrescentia, plerumque pinnata, pinnis angustis, minus vel vix imbricatis. Um- 

 bellae ex Hooker numerosae, multiradiatae, radiis usque 25, strictis, rigidis, quadri- 

 alatis, ad alas scabrido-squamulosis, sub anthesi 1 — 1,5 cm longis; involucri phylla 

 8 — 10, firma, anguste lanceolata, integra, acuta vel obovata et apice paucilobata, nervis 

 3 — 4 subtus prominentibus percursa, radios subaequantia vel breviora. Involucelli phylla 

 6 — 7, eis involucri conformia, minora, plerumque integra, subaequalia, umbellulas sub- 

 superantia, 5 — 8 mm longa, prominenter 3 — 4-nervia; umbellulae 15 — 18-florae; 

 pedicelli subaequilongi, scabriusculo-squamulosi, floribus dimidio breviores. Petala obovata 

 vel ovalia vel oblonga, lobulo dimidio breviore sublineari instructa, usque 2 mm longa. 

 Fructus ex Hooker ca. 4 mm longus, ovoideo-oblongus, a latere manifeste compressus. 



Gebiet der südatlantischen Inseln: Provinz St. Helena, an Basaltfelsen in 

 einer Höhe von ca. 100 m »near Taylors Fiat, to the westward of Dianas Peak«. Blüht 

 im Dezember und Januar. 



Nota 1. Species anno -1807 a cl. Burchell detecta in insula St. Helena his temporibus 

 tantum rarissime occurrit; periculum adesse videtur, ne planta mox plane evanescat. 



Nota 2. Ruthea gummifera (L.) Drd. (Syn. : Bubon gummiferum L.; Oenanthe inebrians 

 et tenui folia Thunb. ; Lichtensteinia pyrethrifolia DC; Peucedanum caledonicum Eckl. etZeyh.; 

 Lichtensteinia inebrians E. Mey.; Lepisma paniculatum E. Mey. ; Glia gummifera (L.) Sond.) 

 mea opinione rectius ad tribum Seselinarum referenda ibique cum genere Annesorhixa con- 

 jungenda vel ut genus proprium sub nomine Olia describenda est. 



3. Heteromorpha Cham, et Schlechtd. 



Heteromorpha*) Cham, et Schlechtd. in Linnaea'I. (1826) 385; DC. Prodr. IV. 

 (1830) 134; Endl. Gen. pl. X.(?) (1839) 772 n. 4415; Benth. in Benth. et Hook. f. 

 Gen. pl. I. 2. (1867) 887; Baillon, Hist. pl. VII. (1880) 225, Dict. bot. III. (1891) 

 53 (fig. fructus); Drude in Engl. u. Prantl, Pflzfam. III. 8. (1898) 179. — Bupleurum 

 Thunb. Prodr. fl. cap. I. (1794) 50, Fl. cap. (ed. Schultes) (1823) 247 ex pte. — 

 Tenoria(\) Spreng. Prodr. Umbell, in Neue Schrift, naturf. Gesellsch. Halle II. 1.(1813) 

 32, ex pte. — Anesorhiza A. Braun in Flora XXIV. 1. (1841) 337. — Franchetella 

 O. Ktze. Kevis. gen. I. (1891) 267. 



Calycis dentes conspicui, trianguläres, acuti. Petala subquadrato-rotundata vel late 

 ovalia, integra, saepe obliqua, apice truncata, superne detrusa, lobulo inflexo lineari vel 

 loriformi vel sublanceolato vel rectangulari, plerumque dimidio quam petalum breviore 



*) Nomen e voeibus tiagog (diversus) et /uoQcprj (forma) compositum, propter mericarpia 

 uniuscuj usque fructus difformia. 



