proximate), were in order 2 pairs (17%), 4 pairs (14%), 2 1/^ pairs 

 (10%), 3>^ pairs (9%), i impairs (6%), i pair (5%), 5 pairs (5%), 

 6pairs(3%),4>^pairs (3%), 5^ pairs (2%), totalling 98%. One 

 half of a pair was represented by 1%, 7 pairs by two-thirds of 

 one percent, 6^ pairs, one-half of one per cent, while but one case 

 of the 609 fronds represented 7 14 pairs. 



It is noted that combinations observed, but not included in the 

 descriptive manuals were i pair, 6 pairs, and 7 pairs. Of per- 

 haps greater interest is the fact that separate frequency polygons 

 plotted from the observations made under each light condition, 

 showed modes in the same order of predomination as that already 

 indicated for the species as a whole. 



While some of the above facts may represent the response of 

 this fern to peculiar environmental conditions, they are perhaps 

 suggestive to the plant systematist, ecologist and geneticist 

 alike. Data of this kind for many species can easily be acquired 

 on the field trips of the botanist, and may not only give us a more 

 accurate idea of a particular species but may also lead to some 

 fascinating problem connected with it. Finally, these obser- 

 vations indicate that this particular species is well adapted for an 

 elementary class room study in variation in those regions where 

 it is abundant. 



Des Moines University, 

 Des Moines, Iowa. 



THE CAT TAIL, TYPHA ANGUSTIFOLIA, IN UTAH 

 J. Arthur Harris 



In his comprehensive Flora of Utah and Nevada, Tidestrom 

 records the occurrence of both species of Typha. While T. 

 latifolia is well known in Utah, where it is frequently seen in the 

 drainage waters from irrigation canals, as well as in natural hab- 

 itats, the distribution of T. angustijolia seems to be very limited. 

 The plant, up to the present time, has been reported from two 

 localities only. 



Typha angustijolia is familiar to students of the Eastern United 

 States as a plant occurring frequently in brackish coastal marshes. 

 In 192 1 Wetmore* noted quite incidentally the occurrence of 



*Wetmore, A. Wild ducks and duck foods of the Bear River Marshes, 

 Utah. Bull. U.S. Dep.Agr. 936: 1-20. 1921. 



