study the plants in the field, or at least to base my investigations 
on living material found growing in the open, and to make accom- 
panying pencil sketches; afterwards I drew the published figures 
from spirit-material, but with continual reference to the notes and 
sketches made from the living material. In most cases I have 
investigated the biology of the flowers in their natural habitats. 
Almost all the figures have been drawn by myself, this applies 
more particularly to the flower-biology figures, a few only of the 
morphological figures have been drawn by others, under my super- 
vision. 
This first paper on the morphology of the structure of the 
flowers of the Ericineae will be followed by a second, on their ana- 
tomy, by Mr. Herning E. Petersen, Mag. sc. 
Copenhagen, December, 1907. 
The species mentioned in the following are: - 
Andromeda polifolia.............. p- 29 
Arctostaphylos alpina............. p. 34 
— Uva-Wist. PE oe p. 39 
(Bryanthus coeruleus.............. p. 17) 
(Cassandra calycilata .. 2.5... 2... p. 32) 
Cassiope hypnoides:.........+.... p. 22 
— HAART IDs CCE ee p. 25 
Dedumspalusino, were ECC CEE EE pa 6 
Loiseleuria procumbens ........... p- 13 
Lyonia calyculata........+..+..-.- p. 32 
Phyllodocexcocrwleay. 1). u bu ee pe: 19 
Pirola’ minor oder: Bald yore ee p. 62 
— ip UNION DES 2 sas! PACE lee p. 63 
ei MONDEO. EEE a p. 56 
UN ASCHE Sieh COCO EE p. 62 
Rhododendron lapponicum ......... p. 10 
Vaccinium  Myrtillusan er 2er... p. 42 
== ODYCOCCOR ta eee p. 53 
— WLG LOS URE Een. p. 45 
— Vitis TTADS ER do evo p. 49 
