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Sect. Catoclasis, subsect. ? (incertae sedis). 
Portulaca villosa Chamisso in Linnaea 6:565. 1831; A. Gray in 
Bot. U. S. Explor. Exped. 15:140. 1854; Hillebrand in FI. 
Haw. Ids. 39. 1888; von Poellnitz in Bish. Mus. Occ. Pap. 
12:6.1936; Egler in Repert. 44:264. 1938; Fagerlund 
and Mitchell l.c. 1944; Stone l.c. 1959. 
Portulaca Caumii F. B. H. Brown ex Ghristophersen and 
Caum in Bish. Mus. Bull. 81:29. pi. 13A. 1931; LEGRAND 
‘in Com. Bot. Mus. Hist. Nat. Montevideo n. 34:16. 1958. . 
Low prostrate diffuse or rarely accumbent herb with a fleshy 
root, the stem branching; leaves linear-lanceolate, obtuse, or subulate, 
with .tufts of silky hair in the axils, blades 10-25 mm. long; flowers 
several in a terminal cluster, sessile, partly concealed by the axillary 
hairs; calyx about 5 mm. long, the two lobes broadly ovate, obtuse, 
marginally membranous; petals about 10 mm. long, white or pale 
pink and white; obovate; stamens 26-44, unequal, 2-4 mm. long, with 
slender filaments and broadly elliptic yellow versatile anthers about 
1 mm. long; style with 5-7 stigmas; capsule broadly turbinate at base, 
circumscissile about one-third to one-half way up from the base, 
the wall firm but not sclereous, 3-4 mm. long, about 2.5 mm. broad; 
seeds black, dull, about 0.6 mm. long, the surface rugulose with fine 
stellulate grooves or with zig-zag lines, the margin entire. 
Distribution : Nihoa (Caum 66, type of P. Caumii); Kauai 
(Kekaha); Oahu (Diamond Head, Koko Crater); Molokai; Lanai. 
The above description is largely based on the descriptions by 
Chamisso, Hillebrand, and Brown. The differences between P. 
Caumii and P. villosa were said to be in the whitish flowers, flattish 
leaves, and smaller, more minutely rugose seeds of the former. 
However, the seeds of P. villosa are said not to be stellulate, while 
those of P. Caumii are so described. • 
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Caumii as a synonym of P. villosa . 
sidering Portulaca 
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SPECIMENS EXAMINED 
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1. Portulaca oleracea. KAUAI : Hanapepe Falls, Heller 2521. 
OAHU : Honolulu, Hitchcock 13705. 
2. P. lutea. NECKERISL. : U. S. F. C. Str. ‘Albatross’, Dr. GILBERT 
in 1902. OAHtl ': Kaena Point, GHRISTOPHERSEN 1396. 
MOLOKAI: Sand dunes along coast of west end, Hitchcock 
15124; HAWAII : North of Kaahola Lighthouse, Hawi, Hawaii, 
Degener 21809- 
3. P. cyanosperma : LEHUA : Cuttings’grown at old Castle Home, 
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