of the Galapagos Archipelago. 181 
Caulis spithamzeus, crassitie penne olorine, Rami oppositi, stricti v. curvati, patentes, 
divaricati, prostrati, preecipué apices versus ascendentes, puberuli. Folia parva, sub 1 
unc. longa, patentia vel reflexa, obtusa v. retusa, basi rotundata, sub lente punctata ; 
petiolo brevi, tenui. Amenta stricta, erecta, ad apices ramorum terminalia, 3-6 fasci- 
culata, paucaque axillaria, unà cum pedunculo z unc. longa et ultra, foveis nudis; 
nucibus parvis, latè ovatis, subacutis, basibus immersis. 
Allied to P. microphylla, H. B. K., but differing by the apparently horizontal 
narrower nearly smooth leaves, not furnished with large glandular impressions, 
and numerous amenta. 
62. P. pETIoLATA, Hook. fil.; glaberrima, caule prostrato tetragono?, foliis 
parvis oppositis longè petiolatis latè elliptico-ovatis vel rotundatis utrin- 
que obtusis planis carnosis obscuré 5-nerviis, amentis 2-4 terminalibus 
elongatis. 
Hab. James Island, Charles Darwin, Esq. 
Habitu priori subsimilis, sed glaberrima. Folia punctulata, sub 1 unc. longa, remota, pe- 
tiolis æquilongis. Amenta sub 4, erecta; unico 4 unc. longo, czteris subuncialibus, 
omnibus pedunculatis. 
63. P. FLAGELLIFORMIS, Hook. Jfil.; glaberrima, caule elongato decumbente te- 
tragono, ramis erectis, foliis quaternis breviter petiolatis obovato-oblongis 
subretusis nervo medio et intramarginali percursis, amentis 4—7 termi- 
nalibus filiformibus pedunculatis interdum di- trichotomis ad axillas 
bracteolatis. 
P. flagelliformis, Miquel in Hook. Lond. Journ. of Bot. 
Hab. James Island, Charles Darwin, Esq. 
Caules 11-2 ped. longi, graciles, internodiis bi-uncialibus. Folia erecto-patentia, punctata, 
carnosa, 2 unc. longa, 3 lata, ad apicem subretusum subtilissimé ciliata; petioli 1 lin. 
longi. Amenta 2-3-uncialia, gracilia, erecta. 
Very near the P. portulacefolia, H. B. K. ; the spadices are however nume- 
rous, much longer, and sometimes branched. 
UnricEz. 
64. Urrica (Urena) DIVARICATA, Spr. 
Hab. Charles Island, Charles Darwin, Esq. Common in North America, and probably in 
th America also. y 
is T 252 
