6o 



Antheridia and sporophydia often sepa- 

 rated, subsp. 40. sub-segregata Ndst. 

 mss. 



b) Papillae aculeate, longer; secondary series of 

 cortex cells extremely prominent. 40. 

 var. sub-liis pida A. Br. 



2) Posterior bracts large, well developed ; plant 

 stouter, nucleus 520-620 long. Diam. 

 of antherid. 420-480. 40. subsp. crassi- 

 canlis A. Br. 



Q)Q) Bracts acuminate, verticillate, the intermediate, 

 of the four long anterior ones, longer than 

 the lateral. 41. Boveana A. Br. 



QQ Strue on nuclei 9-10 (stem smooth, here and there 

 sub-triple-corticated; habit of Ch. fragilis). 42. 

 capensis A. Br. 



X X Sporophydia larger, nucleus (600-) 850-950 long. 

 Spines mostly fasciculated, acute. 



1) Secondary cells of the cortex not very prominent. 

 Cortex cells few. 43. liispida Lin. exp. Wallr. 



Cortex cells numerous. 44. (subsp.) horrida 

 Wahlst. 



2) Secondary cortex cells very prominent. 45. rudis 



A. Br. 



Tn'plosticJue; stem triply corticated (consult also ). 

 f Phlceopodes ; basal segment of the leaves corticated ; 



doubly (in the last species triply). 

 * Dioecious. 



Provided with radical, unicellular, globose bulblets; 

 bracts verticellate, the anterior longer, more 

 or less exceeding the length of the sporophy- 

 dium, whose bracts are scarcely shorter, some- 

 times longer, than the bracteoles. Diameter 

 of the antheridium, 500-700. 

 Leaves not very short. 46. aspera (Dethard. ) 



Willd. 

 00 Leaves very short, 2-3 mm. long. 47. (subsp. 



or var.) curta A. Br. 

 No radical unicellular bulblets known. 



X Stipules long, papillae of the stem minute. Bract- 

 eoles long. 48. (species, doubtful) infima. 

 X X Stipules and spines mostly of equal length. 



