126 JOURNAL DE BOTANIQUE: 



profundo, rotundato separatus. Planta perennis, tuberculis minutîs ra- 

 dicalibus munita. Inflorescentia racemum loogum, simplicem, densum, 

 verticillastris approximatis, pedunculo longo suffultum formans. 



Leocus lyratus A, Chev. 



Planta perennis, lubercula radicalia superposita, nucis avellanae 

 maonitudine y,erens, 60-80 cm. alla. Caulis basi geniculatus et gra- 

 cillimus, dehinc resupinatus, quadrangularis, in unaquaquefacie sulca- 

 tus, pubescens, pilis albis appressis. Folia sessilia, opposita, haud car- 

 nosa, crenulata, oblonga, + ad basim auriculata et lyrata, ad apicem 

 obtusa, 8-12 cra. longa, 3-4 cm. lata, supra hirto-tomentosa, infra ad 

 nervos tenuiter pubescentia. Inflorescentia racemum formans, cylindri- 

 cum, densum, 8-14 cm. longum., pedunculo 15-35 cm. longo, aphyllo 

 suffultum. Flores violaceo-purpurei, verticillastris 5-8 mm. distantibus; 

 bracteœ ovatae, subulatau, 8 mm. longae, fugacissimae ; unumquodque 

 verticillastrum 4 racemis brevissimis, non umbelliformibus, e 5-8 flori- 

 bus constantibus formatus; rachis et pedicelli (1-2 mm. longi) pubes- 

 centia, rubescentia. Calyx pubescens et rubescens, 5 mm. longus; 

 lobus superus oblongo-subulatus quatuor alios lobos deltoideos, subu- 

 latos, œquales fere ultra 2 mm. superans; tubus campanulatus, 1,5 mm. 

 longus, non striatus. CoroUa 12-15 ^^- ^onga, violaceo-purpurea; 

 tubus cylindricus gracillimus, hirtus, ad médium abrupte geniculatus 

 et dilatatus; labium superum triangulare, in dimidio superiore erec- 

 tum, ovatum, 3 mm. longum; labium inferum deflexum, 5-6 mm. lon- 

 gum, naviculare, pilis purpureis hispidum. Stamina 4, 2 breviora, 

 filamentis in dimidio inferiore in tubum coalitis, antheris intra labium 

 inferum occlusis. 



Guinée française : Fouta-Djalon, mont Tinka, près Dalaba, à 

 1.300 m. d'altitude dans les savanes, 22 septembre 1907 (Aug-. 

 Chevalier). 



Pycnostachys ( Tieghemanthus) bowalensis A. Chev. 

 Stamina declivia, filamentis basi coalitis. Caetera ut in génère. 



Planta perennis, radicibus fibrosis. Caules basi frutescentes, 

 superne herbacei et ramosissimi, vepreculas 0,3-1 m. altas fin- 

 gentes ; rami novelli quadrangulares, pubescentes. Folia opposita, 

 longe petiolata, lanceolata, obtusa, interdum acuminato-acuta, ad 

 basim parce decurrentia; limbus 6,5-8,5 cm. longus, 3,5-4,5 cm. 

 latus, crenulalus; petiolus gracilis, 3-4 cm. longus. Racemus densus, 

 ovoideus aut subglobosus, interdum ovoideo-cylindricus, 2-2,5 cm. 



