834 



MACROSCOPIC AND MICROSCOPIC CHARACTERS OP PLANTS. 



anterior sepal ; length of the apex of the staminode ; width 

 of the staminode; number of stomata on the lower epi- 

 dermis of the leaf at the apex ; width of the lower epider- 

 mal cells of the leaf at the middle; length of the club- 

 shaped hairs and color at the top of the flower-stalk; 

 color of the upper epidermis at the most anterior part of 

 the labellum. 



(2) The same or practically the. same as the pollen 

 parent : In the length of the bract ; thickness of the outer 

 walls of the epidermis, number of layers in the cortex 

 in the transverse section of the flower-stalk ; color of the 

 lower epidermis of the dorsal sepal at the middle ; width 

 of the upper epidermal cells of the dorsal sepal at the base. 



(3) The same or practically the same as in both 

 parents: In the shape of upper epidermal cells of the 

 leaf; thickness of cell walls of the upper epidermis of 

 the leaf at the middle ; shape of the lower epidermal cells 

 of the leaf; absence of stomata on the lower epidermis 

 of the leaf at the base ; shape of cells, thickness of walls 

 of the upper epidermis at the top of the flower-stalk ; 

 shape of the cells of the epidermis of the flower-stalk 

 on transverse sections. 



(4) Intermediate: In the size of the blotches at the 

 base of the leaf ; length of the spotted area $ ; length of 

 the youngest leaf $ ; amount of shortening of the young- 

 est leaf ; flowering period $ ; color of ovary ; color of the 

 dorsal sepal $ ; color of anterior sepal ; width of lateral 

 petals 9 ; shape of petals ; crisping of margin of petals 

 $ ; color of petals ; length of labellum ; color of exterior 

 of labellum; color of interior of labellum; thickness of 

 cell walls of the upper epidermis of the leaf at the apex ; 

 length 9 , of the upper epidermal cells of the leaf at the 

 middle ; length $ , width $ , of the upper epidermal 

 cells of the leaf at the base ; length of the lower epidermal 

 cells of the leaf at the middle 9 ; number of stomata on 

 the lower epidermis of the leaf at the middle 9 ; length 



9 , width 3 , of the lower epidermal cells, and color at 

 the base of the leaf; thickness of the transverse section 

 of the leaf at the midrib 9 ; width of the upper epidermal 

 cells of the flower-stalk at the top $ ; ratio of pointed to 

 club-shaped hairs, number of hairs, length of pointed 

 hairs $ , on the epidermis at the top of the flower-stalk ; 

 number of hairs $ , length of pointed hairs $ , on the 

 epidermis at the middle of the flower-stalk ; depth 9 , 

 and width 9 of the epidermal cells, width of the cortex 

 $ , in the transverse section of the flower-stalk ; color of 

 the dorsal sepal at the middle $ ; ratio of pointed to 

 club-shaped hairs 9 , and length of club-shaped hairs on 

 the lower epidermis of the dorsal sepal at the middle; 

 color of the upper epidermis of the dorsal sepal at the 

 base; width of the lower epidermal cells of the dorsal 

 sepal at the base 9 ; ratio of pointed to club-shaped 

 hairs and color of the lower epidermis of the dorsal sepal 



at the basej color of the upper epidermis of the lateral 

 petals at the middle $ ; color of the upper epidermis of 

 the lateral petals at the base 9 ; color of the upper epi- 

 dermis of the labellum at the base along the midline $ . 



(5) Higher than in either parent: In the length of 

 flower-stalk 9 ; length of ovary 9 ; length 9 , and width 



9 of dorsal sepal ; width of the anterior sepal 9 ; length 

 of the lateral petals 9 ; width of labellum 9 ; color of 

 staminode $ ; length 9 , and width 9 , of the lower epider- 

 mal cells at the apex of the leaf ; depth of the lower epi- 

 dermal cells 9 , depth 9 , and width 9 , of the midrib 

 bundle in the transverse section of the leaf ; width of the 

 upper epidermal cells at the middle of the flower-stalk 9 ; 

 ratio of pointed to club-shaped hairs at the middle of the 

 flower-stalk 9 = 5; length $ , width $ , of the upper 

 epidermal cells of the dorsal sepal at the middle ; length 



$ , of the upper epidermal cells of the dorsal sepal at the 

 base ; length $ , of the lower epidermal cells of the dorsal 

 sepal at the base ; length $ , width $ , of the upper epi- 

 dermal cells at the middle of the lateral petals ; width 9 , 

 of the lower epidermal cells at the middle of the lateral 

 petals ; length of hairs 9 , at the base of the labellum 

 along the midline ; length $ , width $ , of the upper epi- 

 dermal cells at the most anterior part of the labellum 

 along the midline ; length $ , width 3 , of the lower epi- 

 dermal cells, and color of sap $ , in these cells between 

 the apex and the most anterior part of the labellum; 

 length $ , width $ , of the lower epidermal cells at the 

 base of the labellum along the midline. 



(6) Lower than in either parent : In the length of the 

 leaves $ , width of leaves $ ; length $ , width 9 , of the 

 upper epidermal cells of the leaf at the apex ; width 9 of 

 the upper epidermal cells of the leaf at the middle ; depth 

 of cuticle $ , depth of upper epidermal cells 9 ; depth of 

 lower cuticle $ , width of lower epidermal cells 9 , in the 

 transverse section of the leaf at the midrib ; length of the 

 epidermal cells at the top of the flower-stalk S ; length of 

 the epidermal cells 3 , length of club-shaped hairs $ at 

 the middle of the flower-stalk ; length of pointed hairs on 

 the lower epidermis of the dorsal sepal at the middle S ', 

 epidermis of the labellum at the most anterior part 9 . 



TABLE J 62. Summary of characters of hybrid-slock as regards 

 sameness, intermediateness, excess, and deficit of development 

 in relation to parent-stocks. 



