Gostus. 395 



glaber vix 3,5 mm latus, oblonge -lanceolata attenualo-acuminata caudata basi acuta 

 utrinque glabra crasse pallidius marginata coriacea 30 — 35 cm longa et 9 — \0 cm lata; 

 vagina glabra linea e petiolo egrediente munita; ligula 1,7 cm longa valde oblique 

 truncata prope petiolum usque ad basin biloba coriacea glabra. Spica ellipsoidea 8 cm 

 longa et 5 cm diametro; bracteae ellipticae obtusae glabrae 2,5 cm longae; bracteolae 

 subaequilongae pariter late ellipticae complicatae; ovarium turbinatum 7 mm longum 

 glabrum apice tantum brevissime et appresse pilosulum; calyx turbinatus 2,2 cm longus 

 glaber tridentatus, dentes 6 mm longi, bracteas jam sub anthesi manifeste superans; 

 corollae albae tubus 1,4 cm longus, lobi late elliptici obtusi 3 cm longi; labellum 

 obovatum undulatum 3,5 cm longum. 



Central-Africa, Ghasalquellengebiet: Land der Niamniam am Nabambisso 

 (Schweinfurth ser. III. n. 204, blühend am 20. Februar 1870). 



Nota. Haec species foliis magnis crasse marginatis calyce bracteas superantc a speciebus 

 affinibus recedit. 



22. C. edulis De Wild, et Dur. in Bull. Soc. bot. Belgique XXXVIII. (1899) 170; 

 Gagnepain in Bull. hist. nat. Autun XV. (1902) 38. — Caulis e dimensionibus frustuli 

 robustus. Folia breviter (vix 3 mm longe) petiolata lanceolata acuminata basi angustata 

 utrinque glabra 27 cm longa et 8,5 cm lata; ligula 1,2 cm longa truncata glabra latere 

 ad laminam spectante fissa. Spica ellipsoidea 8 — 10 cm longa et 6 — 7 cm diametro 

 probabiliter caulem foliosum terminans; bracteae uniflorae inferiores ad 3 cm longae 

 turbinato-cylindricae oblique truncatae glabrae; superiores late ovatae obtusae glabrae 

 infra apicem calloöO-mucronatae 2,5 cm longae; bracteolae solitariae 2,3 cm longae 

 oblongae obtusae infra apicem callosae complicatae ; ovarium glabrum ; calyx turbinato- 

 tubulosus 1,7 cm longus trilobus unilateraliter fissus glaber ; corollae albae tubus 1,2 cm 

 longus, lobi albi roseo-cincti 1,7 cm longi; semina subtessellata cinerea reticulata 

 2,5 mm longa et 1,7 mm diametro. 



Oberes Congogebiet: In der Umgebung von Nyangwe (AI fr. Dewevre); das Volk 

 der Manyema verzehrt die bosso-bosso genannten Blätter, 



Nota. Bracteas basales tubulosas ex speciebus africanis nuUa nisi C. trachyphyllus K. Schum. 

 offert, quae autem spicas scaposas immediate e rhizomate oriundas procreat. Spicam prope 

 pedunculum tenuem terminalem censeo. 



2 3. C. littoralis K. Schum. n. sp. — Herba perennis elatior gracilis, caules 

 1,4 — 1,7 m alti 5 mm diametro glabri. Folia breviter (3 — 4 mm longe) petiolata, 

 petiolus glaber, 2 mm latus, lanceolata attenuato-acuminata longe caudata basi angustata 

 haud breviter rotundata manifeste obliqua et plus minus falcata utrinque glabra apice 

 tantum minute pilosula 16 — 22 cm longa et 3,5 — 6 cm lata sicc. obscure castanea; 

 vagina angusta striata glabra linea infraligularis 0; ligula 5 — 6 mm longa suboblique 

 truncata coriacea glabra, Spica brevis subglobosa 3 cm diametro foliis summis dense 

 congestis et rosulatis late sessilibus involucrata; bracteae late ellipticae obtusae 2 cm 

 longae glabrae uniflorae; bracteolae solitariae oblongae acutae infra apicem calloso-lineatae 

 complicatae; ovarium 3 mm longum apicem versus sub lente valida minutissime appresse 

 subsericeo-pilosulum ; calyx 1,4 cm longus anguste turbinatus glaber tridentatus, dentes 

 3 — 4 mm longi glabri; corollae albae tubus 9 — 10 mm longus, lobi lanceolati obtusius- 

 culi 3 cm longi; labellum 4 cm longum obovatum undulatum album et pallide flavum; 

 stamen paulo brevius oblongum obtusum anthera quadrante superiore affixa. Capsula 

 1,3 cm longa et 1,2 cm lata plano-convexa; semina 3 mm longa tessellata basi alba 

 acuta nigra nitidissima, arillo albo bilobo, lobo maximo integro. 



Liberia: Grand Bassa, hei Fishtown an leicht bebuschten Stellen des sandigen 

 Vorlandes nahe dem Strande ca. 3 m ü. M. (Dinklage n. 1701, blühend am 14. August 

 1896). 



Nota. Haec species primo visu Costo afro haud absimilis tamen ab eo bracteis unifloris 

 foliis majoribus longius acuminatis et praecipue superioribus falcatis, petiolis et ligulis longioribus, 

 calycibus minoribus et labello pallide flavo discrepat. Folia sicc. obscure castanea notam optimam 

 differentialem facile visibilem offerunt. 



