ANATOMY AND AFFINITY OF CERTAIN FARE AND PRIMITIVE FERNS. 385 
been made from mature sporangia are 49, 48, 46, 44, 43, 39, 35. The full spore- 
number is probably 52. 
General Conclusion. — A general survey of the structural features of this plant 
reveals no point which militates against a Gymnogramme relationship. -The 
advanced dermal appendages and the characteristic capitate hairs and resinous 
secretions are easily matched from Gymnogramme types. With the hairs and 
secretions, however, matters are different than with the scales. The latter may be 
reasonably compared with the scales of many plants in no way directly related to 
Trismeria. But glandular hairs and secretions of the type under discussion are 
uncommon among Ferns, and may be accordingly considered truer indices of affinity. 
On the grounds of the hairs and s'ecretions, then, a choice of near relationship for 
this plant is suggested between Gymnogramme and Cheilanthes or Nothochlsena. 
The anatomical condition is of an advanced type, not characteristic of this 
plant alone, but common in the Gymnogramminas in general. The “ Acrostichoid ” 
sporangia with typically regular annulus and moderate spore-output would admit of 
