So 
EXPLANATIONS 87 
res. = resemble. 
hds, = heads. 
obvious, used of hair, etc., when readily seen to be present with- 
out magnifying. 
Comparative degree refers to preceding statement of the same 
rank, whether description or conspectus-heading, without continued 
repetition of the correlative. 
Phrases such as “continuously,” or ‘ persistently petioled." 
Here, where the adverb is not liable to mistaken application to 
time, I use it to indicate that the tendency to develop a petiole is 
not only characteristic of the base of the stem (as in most species), 
but continues above, the production of petioles persisting well up 
to the top of the main stem (as in few). 
Au. Se. Oc., used for the chief months of Aster-flowering, in- 
stead of the longer abbreviations, because constantly recurring. 
Dimensions stated as “ 5 x 3'” are to be read “ Leaves reach- 
ing 5 inches long by 3 broad” ; and ** stems 2°” = 2 ft. high. 
Measurement equivalences: approximately, 
I metre =~ 30-27 qum — 3 feet 3.37 inches. 
I decimetre — 3.94 inc 
I centimetre — 2 on Io lines. 
t millimetre — 4j. inch = Z line. 
I inch = 25 millimetres — 214 centimetres. 
I oot = 30 centimetres — 3 decimetres. 
