SUB-SECTION POLYSTICHUM. 107 
collection. 16x5 inches. Short pinnae, large rounded pinnules; 
costa splitting and forming a besom-like head. 
19. spinigerum, Lowe. Found at Chard by Mr. Moly. A 
grandiceps with short spiny pinnules. 15x4 inches. 
20. viviparum, Lowe. History unknown. From the late 
Colonel Jones’s collection. A grandiceps with a viviparous head. 
Length, 10 inches. Very irregular. 
Section y. CRISTATUM. (Bunch crested.) 
1. apuaeforme, Moore. Found in 1863, at Cunsey, by Mrs. 
Wilson. Fronds fish-shaped ; crested. 
2. attenuato-cristatuin, Wollaston. Found by Mr. Elworthy. 
3. brachiale, Lowe. A superb variety, found in the late Colonel 
Jones’s collection of dried fronds. The superior basal pinnule un- 
equally brachiate ; pinnules setose ; pinnae crested ; and apex of 
frond capitate. 18x6 inches. 
4. Braclburyanum, Jo?ies. A good grandiceps form. 
5. Carbonellii, Lowe (cristatum Carbon ell, Jones). Slender, but 
a large grower. Upper pinnules of upper pinnae incised. 
6. Cowperi, Lowe (cristato-gracile Cowper, Wollaston ). Found 
,in 1874, in Dorset, by the late Mr. R. Cowper. Much narrower 
near the apex. A slender variety, with small crests and pinnules. 
16x4 inches. 
7. cristato-gracile, Wollaston (percristatum, Moly). Found in 
1868, in South Devon, by Mr. J. Moly. 21x5 inches. Apex of 
pinnule conspicuously dentate ; crests small. An interesting variety. 
8. cristatum, Moore. Under this name there are many forms. 
9. cristulum, Lowe (cristatum Stormount, No. 1 , Praeger). Found 
in 1883, at Stormount, by Mr. Praeger. A neat cristulate form, in 
which the upper part of the midrib of the pinnae expands and 
becomes transparent. 
10. grande, Lowe (capitatum-grande, Fox). Raised by Mr. E. 
F. Fox. 14x4 inches. Normal, with a large, compact head. 
ix. inaequale, Lowe (inaequale cristatum, Wollaston). Found in 
1863, in South Devon, by Mr. G. B. Wollaston. A singular com- 
bination of cresting and depauperation. A small, dense, capitate 
head. 22x7 inches. 
12. Jacksoni, Lowe (cristato-gracile Jackson, Jones). Found by 
the late Mr. Jackson. 15x6 inches. A pretty thorny-looking 
variety. 
13. Jonesii, Lowe (cristato-gracile, Jones). Length, 1^ feet. 
14. laxum, Lowe (cristatum-laxum, Jones). Found in 1881, at 
Holywood, by Mr. Praeger. 13 X2| inches. A nice crested form, 
with ends of pinnae confluent. 
15. Molyi, Lowe (cristato-gracile Moly, Jones). A pretty form. 
16. multifidum, Wollaston. A number of varieties have been 
found ; more or less branched. 
17. multilobum, I^owe (multilobum cristatum Jones, Wollaston). 
Raised in 1873 by the late Colonel Jones. 24x4^ inches. A very 
fine, densely crested form. 
