— B 9^ — 



Dimensions : Stems i to 2 inches long, diam. 75 mm,, witli leaves 7 mm. 

 wide; leaves 4. mm. x 2. mm., 3.75 mm. x 2. mm., 3.25 mm. x 2. mm , 

 cells .04 mm. x .03 mm., bracts 2.25 mm x i 5 mm.; perianls 2.25 mm. 

 X I mm. 



Hab. : Between Kisalaand Lundu (Mayombc) (Dr. Poma). — Chute de la 

 Benga, Xlemfii. 2-Vl-iq (R. P. H. VandkkustV 



Obs. : I bave not been able to identily this species with any described by 

 Stephani from Africa; it bas a supeilicial ressemblance to o'ur Plagiochila 

 aspk'iiioides var. major, and belongs to a section to whicb Plagiochila 

 coliimbica G aiso belongs. 



Plagiochila strictifolia, St. (Fig. XI). 



Dimensions : Stems i tôt i ' , inches long; diam of stem .5 mm.; with 

 leaves 5.5 wide; leaves 3.5 mm. x i 5 mm , 3.25 mm. x 1.25 mm.; cells 

 .04 mm. : bract 1.5 x .75 mm.; i)erianth 1.5 mm x .1 mm. 



Hab. : Between Kisala and Lundu (Mayombe) (D^ PoMA). — Temvo 

 (Mayombe). lo-IIio (D^C. Vkhmop:seni). 



Obs. : 1 hâve had ihe opportuuity of comparing my spécimens with the 

 original of Stephani, with which they entirely agrée.' 



Plagiochila fragilifolia, n. sp., Pears. (Fig. XII). 



Dioicum. Magnitude) média; color obscuro-viridis fusca, cespitosum. C^aulis bi-dicholumis. 



Folia alternata. dcnsa, patentia (50°) vel erecto-palentia (30°), subrotundala vel sub- 

 falcata rotunda. apex irregulariier dentatus, rolundatus; Margina anterior perdecurrens, 

 intégra; posterior in mediam caulem ]ir<)lracla, subdecurrens, undulala, recurvata, intégra 

 vel 1-2 remole dentata; Cellularum magnitudo minuta, 4, 5 et 6 faciès habentium, qua- 

 dratit', membrane sunt firma;. sine trigonibus vel angulis, incrassat.x. 



Folia inferiora numerosa. lanceolata, simplicita vel irregulariter bifida. 



Braclea' foliis minores rotunda-, irregulariter denlalac. 



Perianthus per médium bracleas excedens, cylindricus, ovatus, allalus; ala- lata;, longa", 

 dentalac; os rudo dcntatum. Bractea- (J terminales, pares 5: lobus ovatus, integrus; 

 lobulus minor, ovatus, integrus. 



Dioicous. Médium size; dark greenish brown in colour; caespitose. Stems 

 twice dichotomoiis Leaves alternate, approxiniate ; patent (50") to erecto- 

 patent (30°), semi-rotund to sub-falcate-rotund, apex irregularly dentate, 

 rotundate; antical dower) inargin very decurrent, entire; postical (uppèr) 



