BENEDICT: NEW VARIETIES OF NEPHROLEPIS 219 
Eliminating the last two mentioned types, Wittboldi and the 
“fish-tail” form, there remain then three main lines of variation 
from var. bostoniensis, namely: a line showing increased division 
in the’ leaf, a line showing increased waviness or ruffling of the 
WHITMANI- 
** IMPROVED” 
ORT 
; ‘ “ compacta 
(Barrows Whitmani..... Marhitce 
PIERSONI- Gracillima \ 
# auines ” oodi } 
Elmsfordi 
Elegantissima . Beisromgason 9) 
Piersoni...... < MPROVED ”’ 
} asic sima- 
Schilleri pacta.....Sport like Whitmani-compacta 
| Superbissima ...Muscosa 
| SPLENDIDA 
Anna Foster 
Amerpohli......, Pemithl 2. il. Craigi 
a Fei g a ky Pee ape ear Wm. K. Harris 
. .bostoniensis.. 7 like Dwarf sport. .FISH-TAIL SPORT 
Roosevelti ..... m. K. Harris 
eeahag Tec andolphi 
Smallest dwarf 
FALCATA 
Sete oo ae: Wagneri 
Schultheisi Scholzeli....... three-pinnate sport 
Dwarf sport 
GAtTASI oe 5 
two-pinnate sport 
WITTBOLDI 
GENEALOGICAL CHART OF PROGRESSIVE SPORTS OF bostoniensis 
Black face type indicates division sports. 
ru £ 
arfing. 
Small capitals indicate other kinds of variation. 
pinnae, and a line showing dwarfing. These types of variations 
are referred to as “lines of variation” because they represent the 
beginning of the orthogenetic series already mentioned, series in 
which these three kinds of variation are repeated in intensified 
