On the Anatomy of Archangiopteris Henryi and other 
Marattiaceae. 
BY 
D. T. GWYNNE-VAUGHAN 
Demonstrator in Botany at Glasgow University. 
With Plate X. 
A RCHANGIOPTERIS was established in 1899 by Christ and 
/I Giesenhagen as a new genus of the Marattiaceae connecting 
Angiopteris with Danaea \ The plants upon which the genus was founded, 
as indicated by the specific name, were discovered by Dr. A. Henry in 
Yunnan in the south-west of China. The Fern was found in one locality 
only, in a mountain forest to the south-east of Mengtse. The material 
upon which the following observations were made was a small piece of 
a stock preserved in spirit which was presented by Dr. Henry to Professor 
Bower, who handed it over to me for investigation. Dr. Henry informs 
me that it was only by a lucky accident that this particular material 
reached Europe at all. It was left behind in a house at Mengtse when 
Dr. Henry had to retire from that district in consequence of an upheaval 
among the natives. During his absence the Chinese soldiers who were 
put on guard to protect European property looted the houses. They 
forced an entrance into the houses through trap-doors in the floors, which 
were built on piles some feet above the ground. Luckily in Dr. Henry’s 
house a heavy box had been left accidentally above the trap- door, and 
in consequence it escaped loot. A year afterwards the bottle containing 
the material was brought home by Mr. Miller, of the customs service, who 
returned to Mengtse after the troubles were over. 
A detailed account of the morphology and structure of the leaf of 
Archangiopteris is to be found in the original account given by Christ and 
Giesenhagen, but nothing has yet been published upon the anatomy of the 
rhizome and petiole save a passing reference to the latter by Brebner 2 
1 Flora, Bd. 86, p. 72. 
9 ‘ On the Anatomy of Danaea and other Marattiaceae,' Annals of Botany, vol. xvi, No. lxiii, 
pp. 537 and 538, 1902. 
[Annals of Botany, Vol. XIX. No. LXXIV. April, 1905.] 
