6o SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 1 26 



43. The leaves only 5-6 cm. long, the spines 3 mm. long; 



sepals 7-8 mm. long. 



44. Filament-tube continued only 2 mm. above the junction 



with the petals ; scape-bracts ovate with linear blades, 



obscurely serrulate 36. D. schwackeana 



44. Filaments highly connate above the junction with the 



petals; scape-bracts acuminate, densely serrulate. 



2,7. D. densiflora 

 43. The leaves 17-50 cm. long. 



45. Sepals 16 mm. long; inflorescence soon glabrous. 



38. D. dusenii 



45. Sepals 6-9 mm. long; inflorescence persistently fur- 



furaceous. 



46. Filaments not connate for more than 2 mm. above the 



petal-stamen tube; pedicels to 4 mm. long; sepals 



7-9 mm. long; petal-blades suborbicular. (Fig. 19.) 



39. D. minarum 



46. Filaments high-connate above the petal-stamen tube. 



47. Sepals 8-9 mm. long, cucuUate ; petals 16 mm. long, 



their blades rhombic 40. D. reitzii 



47. Sepals 6 mm. long, mucronulate; petals 12 mm. 

 long, their blades broadly obovate. 



41. D. lagoensis 

 39. Scape-bracts shorter than the internodes. 

 48. Flowers subsessile; sepals 4-6 mm. long; filaments high- 

 connate above the petal-stamen tube. 

 49. Inflorescence subdense, 4-5 times shorter than the scape; 

 wing of the ovule narrowly falciform. . . 42. D. consimilis 



49. Inflorescence lax, nearly as long as the scape; wing of the 



ovule broadly rounded 43. D. rariHora 



48. Flowers distinctly pedicellate. 



50. Floral bracts and scape-bracts serrulate. 



51. Inflorescence subglabrous; lower floral bracts about equal- 

 ing the 9 mm. long sepals 44. D. pseudococcinea 



51. Inflorescence f urfuraceous ; lower floral bracts exceeding 

 the sepals. 

 52. Leaves laxly serrate, much more lepidote on the under 



side ; sepals 7-9 mm. long 39. D. minarum 



52. Leaves repand-serrate, equally lepidote on both sides; 



sepals 6 mm. long 35. D. f osteriana 



50. Floral bracts and scape-bracts entire; sepals ^i-% mm. long. 

 53. Filaments short-connate above the petal-stamen tube. 



45. D. dissitiflora 

 S3. Filaments almost completely connate... 46. D. warmingii 

 38. Sepals obtuse. 

 54. Scape-bracts all exceeding the internodes ; filaments connate for 

 2 mm. above the petal-stamen tube. 

 55. Sepals 12 mm. long; leaves so cm. long; inflorescence branched 

 or with buds in the axils of the lower bracts. 



47. D. bracteata 



