178 EIGHTEENTH ANNUAL REPORT ON THE STATE CABINET. 



• fragilis, Bernh. Brittle Cystopteris. 



Clefts of wet rocks, gravelly shores of streams, stony hillsides, and some- 

 times in black-ash swamps. Abundant. July, August. 



var. dentata, Hooker. Dentate-lobed Cystopteris. 



Dryrocks. Below Utica. at the summit of the valley hillside, on outcropping 

 sandstones in crevices of the barren surface. Rare. June. 



ASPIDIUM, Swartz. Shield-ferns. Aspidia. 



. thelypteris, Swartz. Lady-fern. 



Fences, pastures, along streams, swamps. Common. July - October. 



. noveboracense, Willdenow. New- York Fern. 



Marshes and shady moist woods. Abundant. July - September. 



• dilatatcm, Willd. Broad Aspidium. 



Deep woods and borders of high swamps. Also formerly gathered in Yates 

 county by Sartwell. Infrequent. August. 



, spinulosum, Swartz. Spinulose Aspidium. 



Ravines and woods. Common. August - November. 



« boottii, Tuckerman. Discovered by William Boott. 



Rather large, outline oblong, stipe chaffy ; frond smooth ; somewhat 3- 

 pinnate; pinnules oblong-ovate, acutish, pinnatifid ; segments sharply 

 toothed, teeth mucronate ; sori rather small, distinct, somewhat reniform: 

 Tuckerman in Hovey Mag. 



Rich low woods on the Mohawk river-bottoms, a narrow form and one 

 which is quite scarce. A shorter state of the same form has been gathered 

 on the borders of swamps on the hills of Delaware county, by B. D. Gilbert. 



A form only a little larger than specimens from the original locality of this 

 species is abundant in all deep rich woodlands. Frequent. August, Sept. 



■ cristatum, Swartz. Shield, Crested Aspidium. 



A long narrow form, the old A. lancastriense, is rare in arbor-vitae bogs 

 in the valley of the Mohawk. Around marshes in Delaware county, B.I). 

 Gilbert. 



The broad-fronded plant is common in upland swamps. Borders of the open 

 marsh-land north of Summit lake, Otsego county. Cedar swamp east of Mud 

 lake; on the marshes of Jordanville, Warren; around Hidden lake, Litch- 

 field; and in open bogs on Frankfort hill, near Wetmore's bear-pond; Her- 

 kimer county. Frequent in the cold marshes east of Fish creek, and near 

 Point of Rock lake, and throughout the northern part of the county. 



Scarce. July. August. 



var. majus, Eaton, ined. Greater Crested Aspidium. 



Low rich woods : common on the flats of the Mohawk; and occasionally of 

 the streams and creeks emptying into it. Frequent. August - October. 



. GOLDieanum, Hooker. Discovered by Goldie. 



Deep rich ravine-bottoms. Frequent. July, August. 



» marginale, Swartz. Mar ginal- fruited Aspidium. 



Gulf-sides, rocks. Common. July - September. 



. acrostichoides, Swartz. Acrostichum-like Aspidium. 



"Wooded banks. Common, 



var. incisum, Gray. Incised-lobed Aspidium. 



Shady swamps and stream-sides. Frequent. 



Fronds of this variety, having all the pinnae fruitful, have been gathered 

 along ravines two miles southeast of Utica; and on the sides of a gulf on 

 College hill southwest of Clinton. Rare. July - November. 



