. The Cactaceae : descriptions and illustrations of plants of the cactus family. . Fig. 60.—Rebutia pygmaea. Fig. 60 a.—Plant and section of stem of Rebutia steinmannii. 4. Rebutia pygmaea (R". E. Fries). Echinopsis pygmaea R. E. Fries, Nov. Act. Soc. Sci. Upsal. IV. I1: 120. 1905. Simple, ovoid to short-cylindric, 1 to 3 cm. long, to 2 cm. in diameter, or sometimes branched with 2 to many short joints from a much thickened root; tubercles small, more or less arranged into 8 to 12 spiraled rows; areoles narrow, somewhat lanate; spines all radial, 9 to 11, short, appressed, 2 to 3 mm.
. The Cactaceae : descriptions and illustrations of plants of the cactus family. . Fig. 60.—Rebutia pygmaea. Fig. 60 a.—Plant and section of stem of Rebutia steinmannii. 4. Rebutia pygmaea (R". E. Fries). Echinopsis pygmaea R. E. Fries, Nov. Act. Soc. Sci. Upsal. IV. I1: 120. 1905. Simple, ovoid to short-cylindric, 1 to 3 cm. long, to 2 cm. in diameter, or sometimes branched with 2 to many short joints from a much thickened root; tubercles small, more or less arranged into 8 to 12 spiraled rows; areoles narrow, somewhat lanate; spines all radial, 9 to 11, short, appressed, 2 to 3 mm. long, acicular, somewhat swollen at base; flowers from the lower part of the plant, some- what curved at base, becoming nearly erect, 18 to 25 mm. long, rose-purple; scales on ovary and flower-tube small, hairy in their axils; fruit globular, 6 mm. in diameter. Type locality: Yavi, province of Jujuy, Argentina. Distribution: Bolivia and northwestern Argentina. We have studied living plants collected by Dr. Rose at Oruro, Bolivia. Illustrations: Nov. Act. Soc. Sci. Upsal. IV. i1: pi. 8, f. 1 to 3, as Echinopsis pygmaea. Figure 60 is copied from the illustration above cited. 5. Rebutia steinmannii (Solms-Laubach). Echinocactus steinmannii Solms-Laubach, Bot. Zeit. 6s1 :i33- i9°7- Small oblong plants (about 2 cm. high) 1 to cm. in diameter; ribs low, often spiraled, tubercled; spines acicular, about 8; flowers from the side of the plant, erect, campanulate; outer perianth-segments oblong, apiculate; inner perianth-segments Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Rose, J. N. (Joseph Nelson), 1862-1928. Washington : Carnegie Institution of Washington
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Keywords: ., bookauthorbrittonnathaniellord1, bookcentury1900, bookdecade1910
