TWO NEW VARIETIES OF THE TERNATE 

 BOTRICHIUM. 



By B. D. Gilbert. 



In October, 1901, Dr. J. V. Haberer. of Utica. N. Y., col- 

 lected a form of Botrychium, which was at once recognized as 

 peculiar and striking. It was found on a bluff west of Whites- 

 boro, Oneida county, N. Y., in thin woods or under a thick stand 

 of Pteris. In October, 1902, both Dr. Haberer and myself col- 

 lected it again at the same place, taking only the fronds and leav- 

 ing the roots to bear plants another year. This bluff or side hill 

 facing the north extends along the south side of the Mohawk 

 river for several miles, from Whitesboro to Oriskany, and we 

 found on examining Dr. Haberer's collections for igoi that he 

 had also gathered it on the same bluff near Oriskany ; while in 

 October. 1900, he found the same form at Cascade Glen, south of 

 Utica, although the specimens were not quite so large. In its 

 full estate it is the largest form known east of the Mississippi, 

 and is fairly uniform in size. There is little doubt that this is 

 the var. australc of Prof. Eaton, which he mistakably identified 

 with Robert Brown's B. australc from Australia and New Zea- 

 land, and with B. decompositum M. & G., from Mexico, both of 

 which are quite different plants. It must, therefore, take a new 

 name, and with Dr. Haberer's consent I have named it after him. 



Botrychium obliquum Habereri var. nov. Rootstock short, 

 thick, with several heavy corrugated roots branching from it ; 

 bud pilose ; common stipe 3-5 cm. long ; stipe of leaf 6-8 cm. 

 long, stipe of fertile panicle 15-26 cm. long, total height of plants 

 30-45 cm. ; number of vascular bundles — 1 in stipe of panicle, 2 

 in stipe of leaf; panicle always tripinnate, heavy. 10-18 cm. long, 

 branches growing upright; leaf broader than long, measuring 

 10x15, 11x18, 14x22, 15x26 and 16x20 cm., tripinnate, nearly al- 

 ways 6 pairs of pinnae and in bud these are distictly countable; 

 lowest pair twice divided to costae, largest pinnules with 6 pairs 

 of segments rather deeper on lower side and in larger speci- 

 mens 5-6 cm. long, 2]/> cm. wide; lower segments broadly attached 

 to midrib 1 cm. from next above, and with distinct midvein run- 



