PREFACE. 417 
Lastly, but not least, the authors offer their best acknowledg- 
ments to Dr. PAppE, Colonial-Botanist, for several very valuable 
collections already received, and for his expressed intention of 
continuing to assist them, as the work proceeds, with materials 
for each volume. Dr. Pappe’s long residence at the Cape, and 
long familiarity with its botany, have given him peculiar qualifi- 
cations for filling the post of Colonial Botanist with honor to 
himself and advantage to the public. The Cape government is 
fortunate in being able to secure, on the spot, the services of a 
gentleman so fully competent to render assistance; and the 
authors of this Flora deem themselves equally fortunate in parti- 
cipating in the fruits of Dr. Pappe’s old and new explorations. 
It is a real pleasure to receive a packet, large or small, of Dr. 
Pappe’s personal collections ; for not only are the specimens 
themselves well selected and complete, but they are most care- 
fully dried,—flattened without being squeezed, and never tangled — 
or interwoven. Besides his own extensive collections, Dr. Pappe 
is in possession of the whole of the dried plants left by the 
lamented CHARLES ZEYHER; from the duplicates of which he 
has furnished the authors sith many rarities. 
Turning a moment from South African friends, the authors 
have now to express gratitude to those who in Europe have fa- 
voured their undertaking. And first and specially they are most 
deeply indebted to SIR WILLIAM HOOKER, not only for throwing 
open to them, in the freest manner, the unrivalled Kew Herbarium, 
permitting them to study the specimens at Dublin and at Ham- 
burgh, and to compare and authenticate with their own collec- 
tions ;—but also for the great interest he has from the commence- 
ment shown in this undertaking. To him primarily it is due 
that the work was set on foot. He it was who suggested it, 
and assisted in devising the plan on which it should be moulded; 
he also introduced the authors to many of the valued South 
African correspondents to whom they have recorded their obli- 
gations; and, lastly, his strong recommendation of the under- 
taking to Sir George Grey was mainly instrumental in obtaining 
the grant from the Colonial Parliament. 
Warm thanks are also due to the following ingne 
