44 GINKGOACEAE, 
Division SPERMATOPHYTA. Flowering Plants. 
Subdivision GYMNOSPERMAE. Naked-Seed Plants. 
Family GINKGOACEAE. Ginkgo Family. 
A very ancient tree family, consisting of only the following 
genus of a single species, cee known except as cultivated. 
GinKco, Maidenhair Tree. 
Rather large conical or irregularly branched dacidicue: tree 
with pale soft ductless wood without resin-passages, with. very 
fine medullary rays; moderately stout often zig-zag rounded 
twigs; small angular spongy or fissured pith; alternate low small 
half-round leaf-scars with 2 bundle-traces; no stipule-scars; 
round-ovoid rather small solitary sessile buds often developing 
the first year; rather large fan-shaped simple long-stalked leaves, © 
many-veined from the base, mostly clustered on short spurs; 
dioecious inconspicuous naked flowers, the staminate in catkins; 
and rather large yellowish ill-scented drupe-like fruits. 
1. Leaves green. 2. 
Leaves variegated. G. biloba variegata. 
2. Weeping. G. biloba pendula. 
Not weeping. 3. 
3. Leaves short-lobed. G. biloba. 
Leaves deeply cut. G. biloba laciniata. 
Family TAXACEAE. Yew Family. 
A small family of trees and shrubs, of no great use except as 
cultivated for evergreen specimens or masses: the wood of 
classic use in archery. 
Taxus... Yew. 
Evergreen shrubs or trees with rather hard reddish ductless 
wood without resin-passages, with spirally marked tracheides; 
terete rather slender twigs; alternate minute low crescent-shaped 
leaf-scars with a single bundle-trace; no stipule-scars; narrowly 
lanceolate often falcate small entire pointed leaves; rounded buds 
with numerous scales; monoecious cone-like naked flowers; and 
solitary bony seeds each in a fleshy cup-like red or orange aril. 
