TABLE III. 



Astrophyton costosum. 



Synopsis of right-hand stem 



(one half arm) 



2 



4 

 8 

 16 

 32 

 59 

 74 

 74 

 64 

 58 

 59 

 63 

 72 

 76 

 52 

 65 

 62 

 53 

 62 

 49 

 44 

 23 

 18 

 5 



o 



2d-3d 



3d-4th 



4th-5th 



5th-6th 



6th-7th 



7th-8th 



8th-9th 



9th-10th 



lOth-llth 



llth-12th 



12th-13th 



13th-14th 



14th-15th 



15th-16th 



I6th-17th 



17th-18th 



18th-19th 



19th-20th 



20th-21st 



21st-22d 



22d-23d 



23d-24th 



24th-25th 



25th-26th 





mm. 

 9 



Astrophyton Agassizii. 



Synopsis Of right-hand stem 



(one half arm). 



sis 



°=3 



taa 



SP5 







mm. 



2 



2d-3d 



27 



4 



3d-4th 



27 



8 



4th-5th 



21 



16 



5th-6th 



19 



32 



6th-7th 



17 



63 



7th-8th 



14 



121 



8th-9th 



11 



157 



9th-10th 



11 



115 



lOth-llth 



9 



13 



llth-12th 



8 



Astrophyton asperum. 



Synopsis of right-hand 



branch at 2d fork from stem. 



Si 





©-2 







mm. 



1 



2d-3d 



12 



2 



3d-4th 



10 



4 



4th-5th 



9 



8 



5th-6th 



6 



16 



6th-7th 



4 



32 



7th-8th 



3 



64 



8th-9th 



2 



115 



9tli-10th 



2 



123 



lOth-llth 



2 



149 



llth~12th 



1 



133 



12th-13th 



1 



65 



13th-14th 



1 



64 



14th-15th 



1 



27 



15th-16th 



1 



8 



16th-17th 



1 



4 



I7th-18th 



1 



24)113(4.7 mm. av- 

 erage length of fork 

 for whole branch. 



10)164(16. 

 erage leng 

 for whole^ 



. 



4 mm.av- 16)57(3.5 mm 



;th of fork average length of 



branch. fork for whole branch 



