MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 185 



Tulipa patens Agardh. 

 Tulifa -patens etiolated in spring of 1900, developed leaves 30 

 to 60 cm. long with inrolled margins and torsions present but not so 

 marked as in T, sylvestris. The leaf from the lowest internode 

 7 cm. above the bulb was about 2 cm. wide at base and sheathed the 

 second and third leaves. The second leaf arose from a node 4.5 cm. 

 above the first and the third arose from a node i cm. above the second. 

 The pedicel of the flower was about 6 to 8 

 cm. long, the perianth segments were i to i . 2 

 cm. long and were of a pale yellow. The 

 stamens were of equal length and deep yel- 

 low. The pistil was about 1.4 times the 

 length of the stamens. The pedicels 

 reached a length of about 2 cm. and the 

 floral organs slightly larger than the normal 

 in some instances, being apparently perfect 

 except for blanching. 



Tulipa sylvestris L. 



The leaves were 30-33 cm. long and 

 trailing in etiolated specimens grown in 

 1900, and marked torsions were exhibited. 

 The margins were tightly inrolled nearly 

 half way to the center, and the entire blade 

 was twisted tightly into a roll in which only 

 the lower, outer surface was visible. The 

 new bulb was formed laterally to the old one 

 in a manner characteristic of the normal, 

 both sending down long offsets. No flowers 

 were developed. 



Vagnera stellata (L.) Morong. 

 Etiolated specimens of Vagnera stellata 

 grown in the dark chamber in April, 1900, 

 showed a length of stem of about 55 cm. 

 which was equal to that of the normal. The Fig. 145. Etiolated culture 

 leaves were about 5 cm. long in the etio- °^ Vagnera stellata. 

 lated and 12 to 15 cm. in the normal. The upper part of the stem 

 became horizontal in the normal, but remained upright in the etio- 



