Austrocylindropuntia pachypus K Schumann Backeberg 1941

Opuntia pachypus K. Schumann 1904, Cylindropuntia pachypus (K. Schumann) Backeberg 1935, Maihueniopsis pachypus (K. Schumann) R. Kiesling 1998

Plants simple, sparsely or not branched basally, few branches above, to 1 m (3.3 ft) high. Stem segments rhomboid-tuber-culate, to 8 cm (3.1 in) in diameter, with conspicuous and numerous spiraling tubercles, spines throughout. Areoles large, close set. Spines as many as 20 or more, wiry, some small, bent backward, to 2 cm (0.8 in) long, some centrals longer. Flowers brilliant red, to 7 cm (2.8 in) long; pericarpels like short branches; perianth segments short. Distribution: Lima north to Ancash, Peru, but not at high elevations.

Austrocylindropuntia punta-caillan (Rauh 8c Backeberg) E. F. Anderson 1999 Tephrocactus punta-caillan Rauh & Backeberg 1957, Opuntia punta-caillan (Rauh & Backeberg) G. D. Rowley 1958

Plants small, sparsely branched basally, forming mounds. Stem segments cylindrical, glossy midgreen, to 10 cm (3.9 in) long, with elongate tubercles. Leaves somewhat rounded, to 1 cm (0.4 in) long. Spines 2-6, reddish brown, to 1.5 cm (0.6 in) long. Flowers red. Distribution: Ancash, Peru.

Austrocylindropuntia pachypus

Peru Rose 1919Peru Rose 1919

Austrocylindropuntia punta-caillan

Austrocylindropuntia shaferi (Britton & Rose) Backeberg 1951

Opuntia shaferi Britton & Rose 1919, Cylindropuntia shaferi (Britton & Rose) Backeberg 1936, Maihueniopsis shaferi (Britton & Rose) R. Kiesling 1998

Opuntia weingartiana Backeberg 1935, Cylindropuntia weingartiana (Backeberg) Backeberg 1935, Austrocylindropuntia weingartiana (Backeberg) Backeberg 1951 Cylindropuntia humahuacana Backeberg 1936, Austrocylindropuntia humahuacana (Backeberg) Backeberg 1951, Opuntia humahuacana (Backeberg) G. D. Rowley 1958, Maihueniopsis shaferivai humahuacana (Backeberg) R. Kiesling 1998

Plants erect, to 30 cm (12 in) or more. Stems sometimes divided into distinct segments, cylindrical to subclavate, to 15 cm (5.9 in) long and 3 cm (1.2 in) in diameter, with indistinct tubercles. Leaves to 6 mm (0.2 in) long. Areoles close set, small. Spines as many as 15, needle-like, not stout, spreading, to 5 cm (2 in) long, sometimes accompanied by hairs or bristles. Flowers deep red, to 3 cm (1.2 in) long; pericarpels pear shaped, spineless, hairy. Fruits globose, bright red, covered with glochids and hairs, to 1.5 cm (0.6 in) long. Distribution: Jujuy, Argentina.

Austrocylindropuntia subulata (Muehlenpfordt) Backeberg 1941

Pereskia subulata Muehlenpfordt 1845, Opuntia subulata (Muehlenpfordt) Engelmann 1883, Cylindropuntia subulata (Muehlenpfordt) Backeberg 1936, Maihueniopsis subulata (Muehlenpfordt) R. Kiesling 1998 Opuntia exaltata A. Berger 1912, Cylindropuntia exaltata (A. Berger) Backeberg 1936, Austrocylindropuntia exaltata (A, Berger) Backeberg 1938, Maihueniopsis exaltata (A. Berger) R. Kiesling 1998

Plants treelike, much branched, to 4 m (13 ft) high. Stems elongate, to 50 cm (20 in) long, distinctly tuberculate, somewhat fragile, with tubercles in a few spirals. Tubercles sharply defined, rhomboid to ovate. Leaves awl-like, persistent, some to 12 cm (4.7 in) long. Areoles on upper parts of tubercles. Spines 1-4, erect, strong, straight, grayish white, to 8 cm (3.1 in) long. Flowers red, not opening widely, to 6 cm (2.4 in) long; pericarpels long, tuberculate, awl-like, with erect scales to 2 cm (0.8 in) long. Fruits ovoid to oblong to club shaped, sometimes spiny, to 10 cm (3.9 in) long. Distribution: probably native only to the Andes of Peru but widely distributed elsewhere, such as Argentina and Bolivia. Austrocylindropuntia subulata is cultivated for use as a living fence, and its spines were used as needles in ancient Peru (Chapter 2, under Other Uses of Cacti).

Austrocylindropuntia verschaffeltii (Cels ex F. A. c.

Weber) Backeberg 1939 Opuntia verschaffeltii Cels ex F. A. C. Weber 1898, Cylindropuntia verschaffeltii (Cels ex F. A. C. Weber) Backeberg 1936, Maihueniopsis verschaffeltii (Cels ex F. A. C. Weber) R. Kiesling 1998 Opuntia verschaffeltii Mat. digitalis F. A. C. Weber 1898,0. digitalis

(F. A. C. Weber) F. A. C. Weber 1898 Opuntia hypsophila Spegazzini 1905, Austrocylindropuntia hyposphila

(Spegazzini) Backeberg 1951 Cylindropuntia haematacantha Backeberg 1935, Opuntia haemata-cantha (Backeberg) Borg 1937, Austrocylindropuntia haematacantha (Backeberg) Backeberg 1951 Opuntia posnanskyana Cárdenas 1950 Austrocylindropuntia steiniana Backeberg 1957, Opuntia steiniana

(Backeberg) G. D. Rowley 1958 Austrocylindropuntia inarmata Backeberg 1962, not validly published

Austrocylindropuntia shaferi

Austrocylindropuntia shaferi

Austrocylindropuntia subulata, also illustrated on page 70

Aztekium 127

Plants shrubby, to 30 cm (12 in) high. Stems ellipsoidal to cylindrical, slender, tuberculate, to 10 cm (3.9 in) long, sometimes producing small globose segments by acrotonic branching. Leaves awl-like, persistent, 0.5-3 cm (0.2-1.2 in) long. Areoles small. Spines variable, as many as 7, sometimes fewer, needle-like, not stout, straight or bent, sometimes interlacing, to 6 cm (2.4 in) long, sometimes absent. Flowers numerous, copper red, to 4 cm (1.6 in) long; pericarpels with few areoles, slightly bristly at rims. Fruits ellipsoidal to pear shaped, spineless. Distribution: La Paz, Bolivia, south to Ca-tamarca, Argentina.

Austrocylindropuntia vestita (Salm-Dyck) Backeberg 1939

Opuntia vestita Salm-Dyck 1845, Cylindropuntia vestita (Salm-Dyck) Backeberg 1936, Maihueniopsis vestita (Salm-Dyck) R. Kiesllng 1998

Opuntia heteromorpha Phllippi 1891, Tephrocactus heteromorphus

(Philippi) Backeberg 1953 Opuntia teres Cels ex F. A. C. Weber 1898, Cylindropuntia teres (Cels ex F. A. C. Weber) Backeberg 1935, Austrocylindropuntia teres (Cels ex F. A. C. Weber) Backeberg 1944 Opuntia chuquisacana Cárdenas 1950, Austrocylindropuntia chuquisacana (Cárdenas) F. Ritter 1980

Plants shrubby, branching basally with a few lateral but ascending branches. Stems erect, not segmented, attenuate

Austrocylindropuntia Verschaffeltii
Austrocylindropuntia verschaffeltii

above, not prominently tuberculate, to 50 cm (20 in) long and 3 cm (1.2 in) in diameter. Leaves awl-like, somewhat flexible, persistent, to 3 cm (1.2 in) long. Areoles small with weak entangled hairs. Spines numerous, fine, brownish, 1-2.5 cm (0.4-1 in) long. Flowers red, 3.5 cm (1.4 in) long; pericarpels with numerous small areoles, hairy. Fruits globose, red to dull lilac-purple, spineless. Distribution: Bolivia and northern Argentina.

Austrocylindropuntiayanganucensis (Rauh & Backeberg) E. F. Anderson 1999 Tephrocactus yanganucensis Rauh & Backeberg 1957, Opuntia yanganucensis (Rauh & Backeberg) G. D. Rowley 1958

Plants forming dense cushions. Stem segments ellipsoidal, elongate tuberculate, blue-green, to 5 cm (2 in) long. Leaves 1 cm (0.4 in) long. Spines 1-4, erect, unequal, pale brown to reddish, to 2 cm (0.8 in) long. Flowers small, bright red. Distribution: Ancash, Peru. Austrocylindropuntia yanganucensis is poorly known.

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