Sarracenias with that of Their Parents 21 



The stoma ta, as in the case of the previous hybrid, form 

 an interesting series. S.flava has 7.25 per field, while 5. Drum- 

 mondii has very few — only .59 per field. The hybrid is inter- 

 mediate, with 3.4 per field. The size of the stomata varies 

 in these forms. In S. flava they are .035 by .03 mm., in S. 

 Driimmondii they are large, .045 X .04 mm. In the hybrid 

 the size is intermediate — .04 X .035 mm. 



The glands present the same curious phenomenon as before; 

 that is, there are fewer in the hybrid than in either parent. 

 5. flava has 3.4 per field, S. Drummondii 4.2, while S. Moorei 

 has but 2.4. 



The hairs of S.flava vary from .1 mm. to .3 mm., with .2 mm. 

 as the average length. 5. Drummondii has remarkably long, 

 fine hairs. There are present besides small fine hairs. The 

 length varies from 1 .98 mm. in length to .44 mm. The average 

 length is about 1.07 mm. with 1 per field. As in the former 

 hybrid considered, .S. Catesbaei, the S.flava parent exerts strong 

 influence on the size of the hairs. The hairs of S. Moorei vary 

 greatly in length; very few are over 1 mm. long, however. The 

 average length is about .5 mm.; which is close to intermediate 

 between the species. They are more frequent than in S. Drum- 

 mondii, 2.3 per field, which is many times less than the hairs 

 of S. flava. It seems that there is an inability in the hybrid to 

 reproduce to any extent the numerous hairs of the 5. flava type. 



Conducting Surface 



The conducting surface in these types reaches to the detentive 

 surface without interruption. In S. flava (PI. V, fig. 23) the 

 cells were .07 mm. long, with a tip process .03 mm. in length. 

 In S. Drummondii (PI. V, fig. 25) the tip is longer, .05 mm. in 

 length, while the whole cell measures .15 mm. In the hybrid 

 (PI. V, fig. 26) the cell is .11 mm. long, with a tip intermediate 

 in size, .04 mm. The glands are grouped more abundantly 

 over the upper conducting region, about the rim, and imme- 

 diately below. Below this nectariferous area, the glands be- 

 come less frequent and cease entirely over the lower half of 

 the conducting surface. In S. Drummondii there are 3-4 per 

 field in this upper area; in S. Moorei, 4 or more. In S. flava, 

 where the glands are not so limited in distribution, there are 

 3 per field. 



