10 



CXL. LILTACE^ (bAKER). 



\^Dasystachys. 



15. DASYSTACHYS, Baker ; Benth. et Hook. f. Gen. Plant, iii. 789. 



Perianth polyphyllous,campanulate; segments oblong, subequal, with 

 an obscurely 1 -nerved keel. fStamens 0, as long as or longer than the 

 perianth ; anthers small, oblong, versatile ; filaments slightly flattened. 

 Ovary sessile, globose, deeply 3-lobed, 3-celled; ovules few, superposed; 

 style subulate, declinate ; stigma capitate, minute. Capsule deeply 

 3-lobed, loculicidally 3-valved. Seeds flattened ; testa black ; albumen 

 fleshy ; embryo short, cylindrical. — Rootstock tuberous, with many 

 slender root-fibres. Leaves radical, linear or lanceolate. Racemes 

 many-flowered, dense, usually simple, subspicate; bracts persistent. 

 Flowers small, white. 



Endemic in Tropical Africa. 



Stamens not exserted. 



Perianth ^. in. long .... 

 Perianth i in. long. 

 Leaves linear. 



Peduncle shorter than the leaves 

 Peduncle as long as the leaves . 

 Peduncle longer than the leaves 

 Leaves lanceolate. 

 Leaves 2-4 in. long 

 Leaves 1 ft. or more long 

 Perianth \ in. long. 

 Peduncle short . 

 Peduncle long. 

 Leaves 3-4 

 Leaves 5-8. 



Leaves falcate, 6-9 in. long 

 Leaves straight, 2-2^ ft. long 

 Perianth \ in. long 

 Stamens exserted. 

 Perianth i in. long. 

 Leaves linear 

 Leaves lanceolate 

 Perianth ^\ in. long. 



Peduncle bearing 2-3 reduced leaves 

 Peduncle bearing several reduced leaves 



1. B. (jracills. 



2. D. drimiopsis. 



3. J>. polifphylla. 



4. D. crassifolia. 



5. D. densijlora. 



6. D. decot-ata. 



7. D. marginata. 



8. D. pleiostachya. 



9. B.falcata. 



10. Z>. aurea. 



11. D. campamilata. 



12. B. debilis. 



13! B. Grantii. 



14. B. coluhrina. 



15. B. papulosa. 



1. D. gracilis^ Baker. Root not seen. Leaves 4-0, sessile, linear, 

 erect, glabrous, thin, 4-5 in. long, \-\ in. broad. Peduncle slender, 

 naked, as long as the leaves. Raceme dense, subspicate, cylindrical, 

 1-1 J in. long, \-\ in. diam. ; bracts subulate, persistent, as long as the 

 flowers. Perianth campanulate, \ in. long; segments linear-oblong, 

 white, mth a 1-nerved brown keel. Stamens shorter than the perianth. 

 Style exserted. 



XTile Iiand. British East Africa : Taita ; at Mbuyuni, in dry sand, Scott-^llioi , 

 6193! 



2. D. drimiopsis, Baker ex Benth. in Gen, Plant, iii. 789. Root- 

 stock tuberous, with copious slender fibres ; old leaves not splitting into 



