266 [1, 266 
oblanceolatum, stylo brevissimo apiculatum. Semina ovoidea, compressa, fere laevia, 
latere exteriore anguste alato-marginata, flavo-fusca; embryo notorrhizus. 
Meist 10—30 cm. Grundblütter mit Stiel bis 5 cm lang. Mittlere Stengelblütter 
meist 2—3 cm lang, + '/»cm breit; obere ca. 1'/s cm lang, 2—3 mm breit; astständige 
noch kleiner. Kelch + 1 mm lang. Frucht (3!/,—) 5'/2 —4 mm lang, (2°/—) 3—3'/ mm 
breit; Ausrandung (Flügelbreite) bis ?/4 mm. Same + 1!/» mm lang, + 1 mm breit. 
Area geogr.: Am. bor. occ. et austr.-occ. 
Dispositio subspecierum et varietatum. 
1. Silieula orbiculata vel late ovato-orbieulata, leviter (plerumque vix ad !/s mm) emar- 
ginata. Pedicelli saepe leviter tantum compressi. Folia ut in ssp. II. 
Ssp. I. Wrightii (Gray) Thell. 
Var. B. pubescens Thell.: Caulis pilis brevioribus (ca. '/; mm longis) sed semper 
rectis et patentibus pubescens; silicula glabra. 
1.* Silicula elliptica, latitudine distincte longior; emarginatura satis profunda (plerumque 
ultra !/» mm), angusta. 
2. Folia caulina indivisa vel pinnatilobata segmentis approximatis obtusis latis, 
superioribus confluentibus, rhachi apicem versus indistincta et dilatata. Silicula 
interdum glabrata. Ssp. Il. georginum (Rydbg.) Thell. 
2.* Folia caulina pinnatipartita lobis remotis lanceolatis acutis, rhachi angusta et 
distincta. Ssp. III. Palmeri (Wats.) Thell. 
Ssp. I. Wrightii (Gray) Thell.; 
L. Wrightii A. Gray! Pl. Wright. II. (in Smithson. Contrib. V. [1853]) p. 15; Walp. Ann. 
IV. (1857) p. 214; Nasturtium Wrightii O. Kuntze Revis. I. (1891) p. 937. 
S.-Kalifornien: Foothills of the San Bernardino Mts., 1882, Parish n. 64 — Herb. 
Boiss., Petersbg. 
Nevada: Calientes, 1902, Goodding n. 913 (pro L. pubecarpo) — Herb. Deless. 
Arizona: Mesas near Tucson, 1884, C. G. Pringle (mixt. cum ssp. georgino!]| — Herb. 
Breslau, Deless., Hausskn., Univ. Wien. 
N.-Mexico: 1851, Ch. Wright n. 855 (Orig.!) — Herb. Boiss., Paris. 
W.-Texas: El Paso, 1884, M. E. Jones n. 3781 — Herb. Barb.-Boiss., Deless.; Kimble (?) 
Co. Reverchon — Herb. Berl; Soyale (?) Creek, 1902, Earle n. 133 — Herb. 
Deless. 
Mexiko: valley of the Rio Grande, below Dofiana, leg. Parry, Wright etc. (Mexic. 
Boundary Survey) — Herb. Berl, Paris, Petersbg.; Rio Grande valley near Diaz 
(State of Coahuila), 700', Pringle n. 8317 — Herb. Breslau, Deless., Petersbg., 
Univ. Zürich. 
