371 
ing lead color: spikes slender, short-jointed, the scales short, acutish or acute: 
flowers nearly equal in height and equating the joint: seed pubescent, 0.7 mm. long.— 
On the flats of the Pecos and along the seacoast. 
10. ALLENROLFEA kuntze. 
Shrubs, with alternate naked branches, densely spiked flowers in 
threes in the axils of the spirally ranked fleshy sessile bracts, perianth 
of 4 (rarely 5) coneave imbricated and more or less united sepals 
which become somewhat spongy and cover the fruit, 2 (rarely 3) usually 
distinct styles, and the pericarp free frém the membranaceous seed- 
coats. (Spirostachys 8. Watson, not Ung. Sternb.) 
1. A. occidentalis (Watson) Kuntze. Erect, diffusely branched, 6 to 15 dm. high: 
scale-like leaves broadly triangular and acute, amplexicaul, often nearly obsolete: 
spikes numerous, sessile or nearly so, cylindrical, 6 to 20 mm. long, densely flowered : 
bracts rhomboidal, crowded, persistent: flowers slightly exserted, at length decidu- 
ous: seed less than 0.5 mm, long. (Arthrocnemum macrostachyum Torr. Bot. Mex. 
Bound. 184. Halostachys occidentalis Watson, Bot. King Exped. Spirestachys occi- 
dentalis Watson, Rey. Chenop.)—Alkaline soils, throughout western Texas, 
11. ANREDERA Juss. 
Glabrous climbing or trailing herb, with tuberous roots, alternate 
fleshy leaves, small white flowers, 5-parted calyx inclosed within 2- 
winged persistent bracts, 3-parted style, and leathery compressed 
pericarp semi-adherent to the membranaceous seed-coats, 
1. A. scandens (L.) Moy. Leaves ovate-oblong, 5 to 7 em. long, acuminate, peti- 
oled: spikes exceeding the leaves: stamens 5, hypogynous; anthers sagittate, 
included, (Polyganum scandens L.)—From the Upper Pecos to the Lower Rio Grande 
(Ringgold). 
PHYTOLACCACER. (POKEWEED FAMILY.) 
Plants with alternate entire or subcrenate leaves, perfect tlowers, 
either a simple or several-celled ovary composed of as many carpels 
united into a ring and forming a berry in fruit. 
1. Rivina. Fruit simple: leaves subcrenate. 
2. Phytolacea. Fruit compound: leaves entire. 
1. RIVINA L. 
Suffruticose (3 to 6 dm. high), with small white or rose-colored flowers 
in axillary and terminal racemes, 4-parted calyx, 4 to 8 stamens, solitary 
ovule, and capitate or many-cleft stigma. 
1. R. levis L. Suffrutescent, glabrate, with spreading branches: leaves sub- 
cordate or ovate, tapering but obtuse at summit: racemes longer than the leaves: 
calyx obsoletely viened: fruit reddish, shorter than the pedicel. (2, portulaccoides 
Nutt.)—Common in alluvial ground throughout the valley of the Rio Grande and to 
the center of the State. 
2. PHYTOLACCA L. (POKEWEED.) 
Tall and stout perennial herbs, with large petioled leaves, terminal 
racemes which become lateral and opposite the leaves, calyx of 5 
rounded and petal-like sepals, 5 to 30 stamens, ovary of 5 to 12 carpels 
