Rhinopterys, Ryssopterys. 281 



e basi cordata ovatae vel lanceolatae apice acutae 3 — 3y 2 mm longae. Pollen 12 — 

 15 \i diametro. Ovarium dense hirsutum. Styli subulati sigmoideo-erecti apice sub- 

 circinatim incurvi fere 1 cm longi. Samarae sericeae fuscae: Ala nari- vel auriculi- 

 lormis vel galli cristam aemulans usque 2 / 3 dm alta y 3 dm (e nuce) lata, nervis flabelli- 

 formi-radiantibus ; nux semiovoidea 1 cm alta 6X5 mm diametro, areola cava ovata 

 8 mm longa. Semen ovoideum; embryo Acridoearpi, cotyledonibus subdirectis inaequa- 

 libus. — Fig. 26 J—L. 



Senegambien (Gambia Boundary Comm. n. 850 [leg. Brown-Lester]). 



Subsp. b. angustifolia (Sprague) Niedenzu. — Rhinopteryx angustifolia Sprague *) 

 in Kew Bull. (1922) Nr. 5, p. 194. — Folia anguste oblongo-oblanceolata 14 — 18 cm 

 longa, 3^2 — ^h cm lata - 



Goldküste (Mac Leod Gold Coast Forest Herb. n. 815: Zwischen Sambu 

 und Pabia Lorha). 



21. RySSOpteryS Blume. 



Ryssopterys**) Blume msc. ; Jussieu Malp. Syn. (1840) 286 et in Arch. Mus. III. 

 (1843) 383, tab. XI; Hasskarl Hort, bogor. I. (1858) 133; Miquel Fl. Nederl. Ind. I. 

 (1859) 583; Hooker f. in Bentham et Hooker f. Gen. pl. I. (1862) 257; Niedenzu in 

 Nat. Pflzfam. III. 4. (1890) 60, in Arb. Bot. Inst. Ak. Braunsberg VI. (1915) 57 et in 

 Verz. Vorles. Ak. Braunsberg S.-S. 1924 (1924) 19; Hochreutiner in Bull. Inst. bot. 

 Buitenzorg XIX. (1904) 45; Merrill, Enum. Phil. Fl. PI. II. 4. (1923) 382. 



Flores quidam aborto gynaeceo masculini. Sepala eglandulosa. Petala lutea gla- 

 berrima. Filamenta gracillima filiformia basi in urceolum brevem paulo ventricoso- 

 inflatum connata. Ovarium dense hirsutum. Stigma apicali-capitellatum. Samarae nux 

 a lateribus compressa (dz lentiformis) et rugosa; ala Banisteriae. — Folia pleraque 

 tiliiformia longe petiolata; stipulis semper suppetentibus interpetiolaribus ramulo affixis, 

 saepe magnis; foliola floralia (i. e. immediatim infra corymbum terminalem sedentia) 

 petiolata subtus basi 2-glandulifera. Corymbi plerumque ternati (medius subsessilis, 

 2 laterales zb longe pedunculati) ramulos 2-foliatos axillares terminantes, »pedunculis 

 supra medium articulatis* i. e. propriis pedicellos paulo superantibus. 



*) Rhinopteryx angustifolia Sprague in Kew Bull. (1922) Nr. 5, p. 194. — >Ab R. specta- 

 bili Niedenzu, unica specie hactenus cognita, ramulis inflorescentiaeque rhachi gracilioribus, foliis 

 anguste oblongo-oblanceolatis breviter acuminatis, antheris subtruncatis, fructu majore differt. — 

 Arbor parva. Ramuli castanei, exsiccando costulati, mox glabrescentes, 2 dm infra inflorescen- 

 tiam 5 mm diametro; internodia 2,5—5 cm longa. Folia anguste oblanceolata, apice breviter sub- 

 acute acuminata, versus basin longe angustata, 14 — 18 cm longa, 3,5 — 4,5 cm lata, coriacea ? 

 supra juventute molliter pilosa, vel glabrata, nervo medio et lateralibus necnon rete venularum 

 prominentibus; petioli circ. 5 mm longi, supra breviter villosi. Racemus terminalis sub fructu 

 ad 3,5 dm longus. Bracteae subulatae, 4 — 5 mm longae; bracteolae iis conformes, 2,5 — 3 mm 

 longae; pedicelli 1,5 — 2 cm longi (sub fructu). Calyx extus basi glandulis 3 circularibus brunneis 

 unilateraliter ornatus, sepala extus breviter brunneo-villosa, difformia; sepalum impar, quod a 

 glandulis maxime remotum est, 5,5 mm longum, 3,5 mm latum, subrhomboideum, nempa inferne 

 suboblongum, in basin per 3 mm leviter angustatum, superne depresso-deltoideum; sepala duo 

 intermedia (nempe interiora et non-glandulifera) elliptica, 5 mm longa, 3,5 mm lata; sepala duo 

 glandulifera oblonga, subcuspidata, 4 mm longa, 2.5 — 3 mm lata. Flores albi (Mac Leod). Pe- 

 tala non visa. Filamenta 2mm longa; antherae 4 — 4,5mm longae, subtruncatae , interdum 

 minute biapiculätae. Mericarpia alis 5,5 — 6 cm longis 3 — 4 cm latis. 



Trop. Afrika. Gold Coast: Northern Territory; savannah between Sambu and Pabia 

 Lorha, N. G.Mac Leod in Gold Coast Forest Herb. n. 815. 



An interesting addition to the genus Rhinopteryx, which has hitherto been supposed to 

 be monotypic. The type-species, R. spectabilis Niedenzu, is a native of the Gambia Protectorate 

 and has obovate-oblong or elliptic leaves, up to 8 cm broad, strongly apiculate anthers and 

 smallers fruits.« 



**) Propter indolem samarae: §vao6g = rugosus; nTiovt; = ala. 



19* 



