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or irregularly reticulate markings on the gynospores and 

 the larger spinulose androspores. 



In gravel, Spanaway Lake, 12 miles from Tacoma, 

 Wash. Aug. 1895, C. V. Piper, 2125; Sept. 17, 1899, 

 J. A. Allen; Oct. 7, 1899, no. 949, J. B. Flett, type, Lake 

 Mara, Sicamous, B. C, 1899, J. Macoun. 



I have held this variety for several years hoping that 

 other collections might more clearly indicate its rela- 

 tionships, but it appears to be constant and very strongly 

 characterized, being fully as far removed from var. 

 Braunii as are Bolanderi and maritima. The gynospore 

 markings are of similar nature to variety truncata, but 

 in that they are round, separate, not cristate and very 

 closely set; and androspores in that are also much larger 

 and papillose, while they are spinulose in Flettii. 



I. ECHINOSPORA VAR MARITIMA (Und.) 



Comparative study of type specimens of /. maritima 

 Und. has convinced me that it is a variety of echinospora, 

 very near var. Braunii, the gynospores being identical 

 with some form of that variety, from which it is sepa- 

 rated by the larger, reticulated androspores, characters 

 not so strong as might be desired. Formerly placed with 

 the terrestrial species, but the nature of the leaves, fleshy, 

 with large air cavities and no bast-bundles, certainly 

 places it among the amphibious species, and inquiries of 

 Prof. Macoun elicited the fact that it grew where inun- 

 dated regularly by the tides, thus confirming the. anatomi- 

 cal diagnosis. 



I have received from Mr. Jas. Galen specimens of what 

 prove to be a new variety of /. Engclmanni. It may be 

 known as : 



I. ENGELMANNI VAR. FONTANA, VAR. NOV. 



Trunk 1-2 cm. in diameter; leaves 30-50. 15-20 cm. 

 long, 2 mm. wide, erect, narrowly winged at base, with 

 many stomata and four cardinal bast-bundles, usually re- 

 enforced by two others at the ends of the cross-dissipe- 

 ments, and smaller ones scattered around the periphery. 



