4 
In addition to the above numbers, most of which are cited in the 
present paper, approximately 3,000 sterile numbers have been received 
from Lamao in the ^^ast two years, from the collections of Borden, Meyer, 
and Whitford. Sterile material was collected by the former two in pros- 
ecuting certain investigations for the Forestry Bureau, while that secured 
by Whitford was for the purpose of determining the constituent species 
of certain areas, and is discussed by him in his forthcoming paper. This 
material is not considered in the present paper except in a few instances 
when it Avas derived from certain species which could accurately be iden- 
tified, and AAdiich Avere not found in floAver or fruit. 
It is admitted that a considerable percentage of the species actually 
found Avithin the limits of the reserA^e is not enumerated. In feome cases 
material sent to specialists has not been identified by them in time to be 
incorporated in the present paper and, as their reports hav'e not been 
received, the author has not felt at liberty to AA^ork on such material. In 
other cases, such as in the Eupliorbiacece, several species are represented 
by imperfect specimens Avhich, at present, render accurate identification 
impossible. In the sterile material collected by Borden, Meyer, and 
Whitford and not found in fruit or flower, a certain proportion of 
species occur which I have been unable even to refer to their proper 
families. Owing to the methods employed in collecting, many species 
are noAV represented in our herbarium by numerous specimens, Avhile 
others, rather common at Lamao, by but one or two. It is very probable 
that some common species, especially of herbaceous and AA^eedy plants, 
are still unrepresented in our collections, and that future botanizing in 
this region will add a considerable numlier to the present list. 
Warburg, Vidal, and Loher have collected on Mount MariA^eles, but 
all three apparently used the toAvn of Mariveles as a base and none of 
them entered the limits of the Lamao Forest Beserve, unless it might 
possibly have been along the lApper boundary ridges, above an altitude 
of 1,000 meters. Vidal’s specimens from Mount Mariveles are cited 
in his “Eevision de Plantas Vasculares Filipinas,” some of Warburg'’s in 
his ‘^‘Monsunia,” and some in Perkins’ “Fragmenta Florae Philippinfe” 
and other papers by various authors. Loher’s material, although it is in 
greater part identified, has been but little cited, as it has been collected 
at a comparatively recent date. Mr. B. S. Williams, collector for the 
New York Botanical Garden, spent several months at Lamao in 1903-4. 
He made an extensive collection within the limits of the Lamao Forest 
Beserve, but his material is at the New York Botanical Garden and it 
has not, as yet, entirely been classified, so that it is not available for 
enumeration in the present paper. 
SEQUENCE AND NOMENCLATURE. 
The sequence of families and genera is that adopted by Engler and 
Prantl in their Naturliclien Pflanzenfamilien, and without exception the 
