212 
Hill and de Fraine. — On the 
fuse up with adjoining structures before any rotation begins so that it is 
possible to give values other than those assigned ; for instance e y and f 
might conceivably be the strands of a cotyledon which had split into three 
parts, so that the existing structures are really the third portions of 
a cotyledon. 
PSEUDOLARIX. 
Pseudolarix Kaempferi , Gord. The number of cotyledons is four or 
five, which resemble in their structure those of Larix leptolepsis and L . euro- 
paea. No cotyledonary tube is formed, and no tendency towards the basal 
fusion of the seed-leaves has been observed. 
The transition takes place entirely within the hypocotyledonary axis, 
and it resembles very closely that already described for Tsuga canadensis , 
Abies sibirica , and other plants ; further description, therefore, is un- 
called for. 
ARAUCARIEAE. 
The seedlings of the Araucarieae naturally fall into two groups ; those 
of the section Eutacta characterized by a slender hypocotyl and two to four 
epigeal cotyledons, e. g. A. Cunning kamii , A. Cookii and A. excelsa ; and 
those of the section Colymbea distinguished by the possession of a more or 
less tuberous hypocotyl and two hypogeal seed-leaves, e. g. A. brasiliensis , 
A. imbricata , and A. Bidwillii . 1 The number of the cotyledons appears 
to be fairly constant ; Masters 2 gives two to four, and Richard 3 states that 
two is the normal number for A. imbricata. 
Exceptions, however, occur ; thus, according to Richard, 3 one or three 
seed-leaves may occur in A. imbricata. Strasburger 4 mentions that three 
or four may be present in the same plant, while Dangeard 5 states that 
three may be present. We ourselves have observed similar abnormalities in 
A . Cunninghamii. 
Araucaria. 
The seeds of several species of this genus, and also of Agathis , were 
planted, but two species only germinated, Araucaria Cunninghamii and 
A. brasiliensis. 
A. Cunninghamii , Forbes. The external appearance of a normal 
seedling of this plant is illustrated in Fig. 4 a, Plate XV. The cotyledons 
are epigeal and, apparently, four in number, arranged in two well-marked 
1 See Seward and Ford: The Araucarieae, recent and extinct (Phil. Trans. Roy. Soc. Lond., 
B. 247, 1906). 
2 Masters : Notes on the Genera of Taxaceae and Coniferae (Journ. Linn. Soc. Lond., Bot., 
xxx, 1895). 
3 Richard : Commentatio botanica de Coniferis et Cycadeis (Stuttgart, 1826). 
4 Strasburger: Die Coniferen und die Gnetaceen (Jena, 1872). 
5 Dangeard, loc. cit, 
