64 
America. This comes from the mountains of Bolivia and Peru. 
Four species, A. Ellisti, A. baccarat A, Stemaria and A. 
angolense, come from Africa, and the first two of these are known 
only from Madagascar. Two species, y oon and A. Veittchii, 
come from Australia. One species, A. Wallichiw, is confined to 
India, one, A. Willinkit, supposedly to Java, and one, A. sum- 
bawense, supposedly to Sumbawa, although some doubt has 
been expressed as to whether these last two may not prove to be 
identical. The remaining three, A. grande, A. coronarium and 
. bifurcatum, are variously serie in tropical and sub- 
temperate countries of the Ol or 
plate III a young Pies of the American species is 
represented. From this some of the characteristic marks of the 
stag-horns can be seen, notably the manner of growth, the coarse 
dissimilar fertile and sterile leaves, and the more or less netted 
porangia are spread in large patches on the surface 
of the leaves, the spore-bearing area varying in position in the 
different species. Scattered about the leaves or mixed with the 
porangia, sometimes forming a woolly or pernariag covering, 
minute stellate hairs or scalesoccur. Seen through a sages 
these sometimes suggest tiny oe pond-lilies or the 
blossoms of a double-flowered many-petalled Star of ae em. 
Others are ee octopoid in shape. These scales are often 
deciduous. 
The fertile leaves are sometimes produced in bas but in A. 
Willinktt they are produced in threes, and i . Veitch in a 
cluster which sometimes contains eleven. me of the stag- 
horns hang their oe in 74 they are said to fall 
straight down. A. Hillit and A. Veith hold theirs stiffly up 
In the last three species aa in A. bifurcatum the eon 
areas are confined normally to the lobes of the leaves. In 
Stemaria they form broad mats, each close to the sinus between 
the lesser forks of the leaf and extending into them. A. Wallichit 
is peculiar in having the spore-bearing area on the under surface 
of an extended convex lobe which is produced in a sinus between 
forks of the leaf. In A. coronarium also the spore-bearing area 
is in a sinus between forks of the leaf, but its position is unique. 
