HO F. Pax. — Euphorbiaceae-Acalypheae-Chrozophorinae. 



■ 



16. Tannodia Barn. 



Tannodia*) Baill. in Adansonia I. (1860 — 1861) 251, t. 7, f. 1—2; Müll. Arg. 

 in DG. Prodr. XV. 2. (1866) 728; Benth. in Benth. et Hook. f. Gen. III. (1880) 304; 

 Pax in Engler u. Prantl, Pflzfam. III. 5. (1890) 43. — Tannodia Sect. Eutannodia 

 Prain in Journ. Bot. L. (1912) 127. — Tandonia Baill. in Adansonia I. (1860—1861) 

 184. — Argythamnia Sect. Tannodia Post et O. Ktze. Lexicon (1904) 43. 



Flores monoici vel polygamo-dioici, petaligeri, 5-meri. Calyx Qf* 2 — 5-partitus ? 

 valvatus. Petala imbricata, 5 vel 4. Disci glandulae alternipetalae, extrastaminales. 

 Stamina 10 — 12, biseriata, exteriora epipetala, breviora, interiora episepala, longiora, 

 omnia basi breviter connata; antherae dorsifixae. Ovarii rudimentum nullum. Sepala 2 

 5 vel 4, imbricata, basi connata. Discus hypogynus membranaceus, cupuliformis. 

 Ovarium 3-loculare; styli basi connati, 2-fidi. Capsula 3-cocca, pubescens. Semina 

 ecarunculata ; cotyledones latae, planae. — Frutices vel arbores, inflorescentia pubescente 

 excepta glabrae. Folia alterna, petiolata, integerrima, firme membranacea, basi 3 — 5- 

 nervia. Racemi terminales, simplices, tenues; flores utriusque sexus sub quaque bractea 

 terni vel bini, breviter pedicellati; bracteae basi grosse biglandulosae. 



Species notae 2, altera comorensis, altera Africae tropicae orientalis incola. 



Clavis specierum. 



A. Flores pentameri 1. T. cordifolia. 



B. Flores tetrameri 2. T. Swynnertonii. 



1. T. cordifolia Baill. Adansonia I. (1860 — 1861) 251; Müll. Arg. in DG. Prodr. 

 XV. 2. (1866) 728; Prain in Journ. Bot. L. (1912) 127. — Tandonia cordifolia Baill. 

 Adansonia I. (1860 — 1861) 185, t. 7, f. 1 — 2. — Agrostistachys comorensis Pax in 

 Engler's Bot. Jahrb. XXIII. (1897) 523. — Frutex dioicus vel polygamo-dioicus, arbores- 

 cens, inflorescentia Q excepta glaber. Petiolus 1 — 1 y 2 cm longus; limbus 8 — 12 cm 

 longus, 4 — 7 cm latus, laete viridis, oblongus vel ovatus, obtuse acuminatus, basi 

 acutus vel obtusus vel cordatus, integer, reticulato-venosus, basi dz trinervius, mem- 

 branaceus, praesertim supra puncticulatus ; stipulae lineares, 3 — 4 mm longae, caducae. 

 Inflorescentia utriusque sexus racemiformis, terminalis, 3 — 4 cm longa; rhachis angulosa, 

 q? glabra, subfiliformis, Q robustior, sed gracilis, subglabra; bracteae trianguläres, 

 acutae, concavae, basi incrassatae, distantes; flores in axillis 3-ni; pedicelli q? glabri 

 dz 2 mm longi, filiformes, Q paulo longiores, minute puberuli. Calyx q^ glaber, ovoi- 

 deus, apiculatus, clausus 1 1 / i mm longus, demum valvatim 2-fidus; petala 5, hyalina, 

 sepalis breviora; disci glandulae alternipetalae; stamina 12; filamenta interiora basi dz 

 connata; sepala Q in urceolum disciformem, leviter 5-lobum connata, extus breviter 

 velutino-pubescentia; lobi late trianguläres, acuti; pars connata incrassata; petala orbi- 

 culari-ovata, obtusa, quam q^ firmiora; discus hypogynus lobulatus; ovarium velutino- 

 pubescens; styli 3, bifidi, ovario accumbentes. Capsula dura; cocci 7 — 8 mm longi, 

 puberuli, tuberculati. 



Gomoren: Mayotte, Cascade de M'sapere (Boivin); ohne nähere Standortsangabe 

 (Humblol n. 382!, 390!, Schmidt n. 19l!). 



2. T. Swynnertonii (Sp. Moore) Prain in Journ. Bot. L. (1912) 127. — Croton 

 Swynnertonii Sp. Moore in Journ. Linn. Soc. XL. (1911) 194. — Arbor; ramuli ultimi 

 satis tenues. Petiolus 1 — 2 cm longus; limbus 6 — 10 cm longus, 3y 2 — 7 cm latus, 

 ovatus vel ovato-lanceolatus, paulo infra apicem angustatus, apice ipso obtusus, basi 

 late truncatus vel cuneatus, margine undulatus, chartaceus; stipulae ovatae, obtusissimae, 

 subscariosae, circ. 3 mm longae. Racemi q? ad 20 cm longi, Q ad 7 cm attingentes; 

 bracteae utriusque sexus 1 — 2-florae, q? ovatae, 2 mm longae; pedicelli (j 1 4 mm 

 longi, glabri, Q 4— 9 mm attingentes, pubescentes. Flores tetrameri. Sepala q? ovata, 



*) Genus dicatum Moquin-Tandon, Botanico parisiensi, qui vegetabilium teratologiam, 

 Gkenopodiacearum monographiam multaque alia eximie exposuit (1804 — 1863). 



