C . d. 
Howland Island 
9 October 1< 
Collection Humber 
2511 
2312 
2313 
2314 
2315 
" ■? • 7 ■■' 
Description 
Portulaca sp.; on west portion, north of the Amelia 
Earhart daylight in disturbed site of for guano operations; 
in flowers 4 petals, 4 parted style, t 14 stamens; 
foliage leaves and stems deeply red with anthocyanins; 
growing in sand which contains some humus in lower layers; 
associated with Tribulus. Lepturug, Boerhaavia and 
Dlgitaria ; the foliage of all species is dry and brown 
flower color of this collection: yellow firs; petals 1/4 
in. long two of which are cleft 1/2 the length of the 
petal, the one other is slightly notched; live material 
Portulaca sp.; same habit as Ho. 2J11 but not in flower; 
in disturbed site but growing near the north wall of 
former guano dwelling enclosure; same associates as 
Ho. 2311 but a large upright Portulaca sp. with larger 
yellow firs, with + ten thick upright stems is present; 
the latter is able to withstand drought much better than 
the smaller plants. 
Portulaca sp.; area identical to those of collections Ho. 
2311 and Ho. 2312 but in the east portion of the disturbed 
area near the walled enclosure; firs yellow, 5 petals, 
petal notched 1/3 of length, + 21 stamens, 4 parted style, 
plant stems prostrate. 
Portulaca sp.; large, 3 stemmed plant, semi-prostrate, 
much anthocyanin in stems and leaves (especially new 
growth - older stems are greyish-brown in color).Firs.j 
yellow, 5 petals + 1/5 in- long cleft 1/3 length into 
two lobes, 4 parted style, + 15 stamens; other flowers, 
some plant, + 10, + 21 stamens. 
■-1' - «w 
Boerhaavia diffusa L.; in sand soil of west portion of 
island about 200 feet north of the north wall of the guano 
compound: firs white tinged purple or pink, closing at 
12;50 pm., leaves small; root among stones and receives 
perhaps more water In this site than other plants of this 
species which are nearly but not in bloom and drier; in 
open area associated with Tribulus Portulaca and Dlgitaria. 
2316 
r ... 
Dlgitaria pacifies ; small clumps; leaves, stems and fruits 
are dry and dead but these have new stems with flowers which 
are green and arising from the ©enter of the clump; north 
of the A.E. daylight about 350 feet north of the north mil 
of the guano dwelling triangle, flat are 
