NO. I BROMELIACEAE OF BRAZIL — SMITH 197 



37. Spike-rhachis straight; inflorescence covered 

 with fine appressed stellate trichomas. 



36. Ae. tocantina 

 24. Mucro of the sepal lacking or invisible without a lens, sepals 

 sometimes acuminate with a soft apex. 

 38. Inflorescence amply tripinnate, densely lanate; sepals ovate, 



soft-acuminate, 11 mm. long Z7- Ae. araneosa 



38. Inflorescence not more than bipinnate. 

 39. Leaf-blades marked with spots or bands; sepals 10 mm. long. 

 40. Floral bracts minute; leaves two-ranked; inflorescence 



diff^use I. Ae. marmorata 



40. Floral bracts exceeding the ovary; leaves in more than 

 two ranks. 

 41. Scape-bracts imbricate; inflorescence short and dense. 



38. Ae. chantinii 

 41. Scape-bracts remote; inflorescence elongate. 



39. Ae. fosteriana 

 39. Leaf-blades concolorous. 

 42. Ovary alate; inflorescence few-flowered; floral bracts 

 large; sepals 8 mm. long, connate for 4 mm. 



2. Ae. brachycaulis 

 42. Ovary wingless, terete. 

 43. Leaf-sheaths erect, forming a slender cylinder, con- 

 cealing most of the short scape. 

 44. Floral bracts minute; sepals 7 mm. long. 



3. Ae. corymbosa 



44. Floral bracts to 7 mm. long ; sepals 3.5 mm. long. 



4. Ae. brevicollis 

 43. Leaf-sheaths divergent, much exceeded by the scape. 



45. Floral bracts evident, equaling about the middle of 



the ovary; scape-bracts red, persistent. 

 46. Flowers in two ranks; primary bracts narrow; 

 sepals subfree, 4-6 mm. long. 



40. Ae. schultesiana 



46. Flowers in more than two ranks; primary bracts 



ample; sepals about a third connate, 8 mm. long. 



5. Ae. weilbachii 

 45. Floral bracts minute or lacking. 



47. Inflorescence simple in its apical half. 



48. Flowers distinctly pedicellate; scape-bracts red, 

 ample, enclosing the scape; sepals 4 mm. long 



(Fig. 95.) 6. Ae. podantha 



48. Flowers sessile ; sepals 5-6 mm. long. 

 49. Ovary even; petal-blades wholly red. 



7. Ae. fulgens 

 49. Ovary verrucose; petal-blades with white mar- 

 gins 8. Ae. capixabae 



47. Inflorescence branched throughout. 

 50. Petals white; sepals 6.5 mm. long. 



9. Ae. corallina 



