78 BRITISH FERNS. — SUB-ORDER II. TRIBE 9. 
cut circular crest. Colonel Jones considered that it suggested 
seaweed.” 
*17. pericalles, Lowe. Raised by myself. i4Xof. Branching in 
both stipes and rachis, and forming a branching head 5 inches 
across. Margin irregular, in the manner of polyschides. 
18. polycuspis-transversum, Moore. Found in 1861 at Brig- 
steer by Mr. J. M. Barnes. Remarkable for the crests crossing 
each other. 
19. polycuspis-undosum, Moore. Found at Giggleswick Scars 
by Mr. Stanstield, near Doncaster by Mr. S. Appleby, and at 
Heversham Head by Mr. J. M. Barnes. A many-pointed twisted 
crest. A form of polycuspis has been found at Fermanagh by Mr. 
W. H. Phillips. 
20. ramo-marginatum, Clapham. Raised in i860 by the late 
Mr. Clapham. Length 14 inches. Branching on stipes and 
rachis, and terminating in several large crests. A lovely form. 
21. ramo-palmatum, Clapham. Raised by the late Mr. Clapham. 
Length 3 inches ; almost naked ; twin-fronded. A lacerated hand- 
like crest. 
22. ramo-proliferum, Clapham. Raised by Mr. Clapham. 
Stipes and rachis branched. Length 3 inches. Coarsely ser- 
rated, and apex split. 
23. Shirenewtonense, Lowe. Found in 1888 on a wall in the 
grounds at Shirenewton by Mr. Ireland. Naked stems. Length 
5 inches. Digitately branched ; dividing into three leafy fronds, 
each dividing into two digitate crests ; the tips flat and dentate ; 
margin coarsely dentate ; partly suprasoriferous. A very interesting 
dwarf form. 
*24. tortuoso-cristatum, Lowe. Raised by myself. 14x2 inches. 
Normal below the crestings. Tortuose crestings of large size (7 
inches across), springing out of the leafy part ol the frond. Half 
a dozen fronds forming a bush 12 inches across. 
25. unguiceps, Wollaston. Raised in 1870 by Mr. E. F. Fox. 
9 Xo| inches. A narrow variety with a bird’s-claw-like crest. Sori 
on the margin. 
26. unilaterale-ramosum, Lowe. Found at Sidmouth by Mrs. 
Thompson. Only branching on one side. 
Section y. CONGLOMERATUM. (Conglomerately branched.) 
1. Baxteri, Moore. A copy of Coolingii. 
2. conglomeratum, Lowe. Found at Truro by Mr. Dadds. Less 
leafy ; the apices more lacerate, and more depauperate than 
glomeratum. 
3. congregatum, Lowe. Raised by myself. Stipes branching ; 
and costa in leafy part splitting into branches that are densely 
crested. 
4. constellatum, Lowe. Raised by Mr. Glave of Scarborough. 
5. Coolingii, Lowe. History unknown. Distributed by Mr. 
Edwin Cooling. A proliferous conglomerate fern. Length, 3^ 
inches. Forming a ball-like bush, and each b ond like a ball. 
