82 NORTH AMERICAN FLORA [VoLUME 21 
1. Arthrocnemum subterminale (Parish) Standley, Jour. Wash. 
Acad. Sci. 4: 399. 1914, 
? Arthrocnemum fruticosum californicum Mog, in DC. Prodr. 132: 151. 1849. 
Salicornia ambigua S. Wats. Proc. Am. Acad. 9: 125, in part. 1874. Not S. ambigua Michx. 1803. 
Salicornia subteyminalis Parish, Erythea 6: 87. 1898. 
Shrub, 2-4 dm. high, densely branched, the branches green, ascending or erect, or the 
basal ones often decumbent, the joints 0.2-2.6 cm. long, 1.5-2.5 em. in diameter, expanded 
at the apex into a short, truncate or bilobate sheath, the lobes obtuse or acutish; flowering 
joints borne on the lower part of the branches or forming terminal! spikes, the spikes 3.5 cm. 
long or shorter, composed of few or numerous joints, these about as broad as long; flowers 
subequal, borne near the base of the joint and reaching half way to the apex; seed brown, 
1 mm. long. 
Type LocaLity: Along the San Jacinto River, Riverside County, California. 
a a In alkaline soil, San Francisco, California, to Sinaloa, and on the adjacent 
islands. 
24. SALICORNIA L,. Sp. Pl. 3. 1753. 
Sarcathria Raf. Fl. Tell. 3: 47. 1837. 
Branched annual or perennial herbs, often suffrutescent, glabrous, fleshy, with opposite 
articulate branches, the joints dilated at the apex into a short sheath. Flowers perfect or polyg- 
amous, immersed in groups of 3-7, or rarely solitary, on the opposite sides of the joints, the 
flowering joints forming cylindric terminal spikes, the flowers usually connate and adnate to 
the joints. Perianth obpyramidal, fleshy, usually truncate at the summit and 3- or 4-dentate, 
spongious in fruit. Stamens 1 or 2; anthers exserted, didymous. Style lacerate above or 
ending in 2 subulate stigmas. Ovule subsessile. Uvtricle included in the perianth, ovoid 
or oblong, the pericarp membranaceous. Seed erect, oblong or ellipsoid, compressed, covered 
with short or long, straight or curved hairs; endosperm none; embryo conduplicate, the radicle 
inferior. 
Type species, Sakicornia europaea L. 
Perennials, suffrutescent at the base; central flower extending little higher than 
the lateral ones. 
Primary branches of the stems prostrate, rooting freely, the erect or ascending 
flowering branches usually simple, slender; hairs upon the seeds slender. 1. S. perennis. 
Primary branches erect, or decumbent and not rooting, usually much branched, 
the branches stout. 
Hairs upon the seeds short, conic. 2. S. fruticosa. 
Hairs upon the seeds slender, curved or coiled. 
Joints of the flowering spikes 7-10; spikes 4 mm. thick. 
Joints of the spikes usually 12-18; "spikes 3 mm. thick or less. 
Annuals; central flower much higher than the lateral ones. 
Plants erect, usually simple at the base; branches usually forming an acute 
angle with the stem. 
Scales mucronate; spikes 4-6 mm. thick. 5. S. Bigeloviz. 
Scales rounded or merely acutish; spikes 1.5-4 mm. thick. 
Joints of the spikes about as thick as long, scarcely exceeding the middle 
S. utahensis. 
S. pacifica, 
AO 
flower; plants very densely branched. 6. S. rubra. 
Joints of the spike much longer than thick, conspicuously exceeding 
the middle flower; plants rather sparsely branched. 7. S. europaea, 
Lower branches of the plants elongate and prostrate, forming a wide angle 
with the stems, 
Seed about 2 mm. long; branches rather sparsely branched. 8. S. prostrata. 
Seed about 0.8 mm. long; branches very densely branched. 9. S. depressa. 
1. Salicornia perennis Mill. Gard. Dict. ed. 8. Salicornia no. 2. 1768. 
Salicornia europaea perennis Gouan, Hort. Monsp. 2. 1762. 
Salicornia fruticosa With. Brit. Pl. ed. 2.1: 3. 1787. Not S. fruticosa I,. 1762. 
Salicornia ambigua Michx. Fl. Bor. Am. 1: 2. 1803. 
Salicornia radicans Smith, Engl. Bot. pl. 1691. 1807. 
Sarcathria ambigua Raf. Fl. Tell. 3: 47. 1837. 
Sarcathria radicans Raf. Fl. Tell. 3:47. 1837. 
Arthrocnemum fruticosum radicans Mog. Chenop. Enum. ie 1840. 
Arthrocnemum ambiguum Mog. Chenop. Enum. 112. 1840 
Salicornia peruviana Mogq. in DC. Prodr. 13?: 145, in part. “1849. Not S. peruviana H. B. K. 1818. 
Perennial, the main branches suffrutescent, prostrate, rooting freely, forming clumps 
or mats 1 meter or less in diameter, the flowering branches ascending or erect, often densely 
