244 



PRINCIPLES OF PLANT-TERATOLOGY. 



such were often seen, as in Grammatophyllum, Cypri- 

 pedium, Cattleya, and Narcissus biflorus. 



In a flower of Grammatophyllum there were two 

 sepals (anterior and posterior), two lateral petals, and 

 two carpels. 



In another orchid, Cypripedium insigne, the anterior 

 sepal was absent ; the posterior sepal, normally con- 

 sisting of the two fused lateral sepals, was rather 

 deeply split and one half had become displaced a good 

 deal to the right; there were two labella (anterior and 



Fig. 147. — Cypripedium insigne. Diagram of perianth and androe- 

 cium. s 2 , s\ lateral sepals ; lb, labella ; A 1 , stamen-like staminode 

 of outer whorl ; a 3 , median stamen of inner whorl ? 



posterior) ; the two lateral stamens of the inner whorl 

 (normally present) were absent, or else fused to form 

 the single fertile stamen which was present, or else this 

 represented the median stamen of the inner whorl; 

 the staminode was quite stamen-like in appearance, but 

 still barren (fig. 147). 



Masters described in the e Gardeners' Chronicle ' an 

 interesting 2-merous flower of G. Harrisianum. The 

 calyx was practically normal, consisting of two sepals 

 situated fore and aft ; these were, however, exactly 

 similar in every respect. The lateral petals were also 

 practically normal, but were placed sharply at right 

 angles to the plane of the sepals. Of the components 

 of the column there were two large staminodes, 



