Austrocylindropuntia cylindrica A L de jussieu ex

Lamarck) Backeberg 1942 Cactus cylindricus A. L. de Jussieu ex Lamarck 1783, not Vellozo 1825 (see Rhipsalis grandiflora) ; Cereus cylindricus (A. L. de Jussieu ex Lamarck) Haworth 1812, Opuntia cylindrica (A. L. de Jussieu ex Lamarck) A. P. de Candolle 1828, Cylindropuntia cylindrica (A. L. de Jussieu ex Lamarck) F. M. Knuth 1935, Maihueniopsis cylindrica (A. L. de Jussieu ex Lamarck) R. Kiesling 1998 Austrocylindropuntia intermedia Rauh & Backeberg 1957, Cylindropuntia intermedia (Rauh & Backeberg) Rauh & Backeberg 1958 Opuntia bradleyiG. D. Rowley 1958

Plants shrubby or treelike, to 4 m (13 ft) or more high, loosely to densely branched, with woody trunks. Stem segments arising laterally from previous shoots, not fragile, dark green, distinctly rhomboid-tuberculate in spirals, to 25 cm (9.8 in) or more long, 3-6 cm (1.2-2.4 in) in diameter. Leaves awl shaped, to 1 cm (0.4 in) long. Areoles with weak, inconspicuous glochids 1-2 mm long. Spines 2-6, sometimes as many as 8, erect, straight, rounded or slightly flattened, about 1 cm (0.4 in) long, sometimes as long as 3 cm (1.2 in), occasionally slightly pubescent. Flowers red, 5-7 cm (2-2.8 in) long; pericarpels elongate with glochid-bearing areoles ex tending to base, occasional hairs. Fruits ellipsoidal to urn shaped, to 9 cm (3.5 in) long. Distribution: central highlands of Ecuador.

Austrocylindropuntia floccosa (Salm-Dyck ex Winterfeld) F. Ritter 1981 Opuntia floccosa Salm-Dyckex Winterfeld 1845, Tephrocactus flocco-sus (Salm-Dyck ex Winterfeld) Backeberg 1935, Maihueniopsis floccosa (Salm-Dyck ex Winterfeld) R. Kiesling 1998 Opuntia atroviridis Werdermann & Backeberg 1931, Tephrocactus atro-

viridis (Werdermann & Backeberg) Backeberg 1935 Opuntia udonis Weingart 1933, Tephrocactus udonis (Weingart) Backeberg 1935

Opuntia verticosa Weingart 1933, Tephrocactus verticosus (Weingart) Backeberg 1935

Austrocylindropuntia tephrocactoides Rauh & Backeberg 1956, Opuntia tephrocactoides (Rauh & Backeberg) G. D. Rowley 1958 Tephrocactus crispicrinitus Rauh & Backeberg 1956, Opuntia crispi-

crinita (Rauh & Backeberg) G. D. Rowley 1958 Tephrocactus cylindrolanatus Rauh & Backeberg 1957, Opuntia cylin-

drolanata (Rauh & Backeberg) G. D. Rowley 1958 Tephrocactuspseudo-udonis Rauh & Backeberg 1957, Opuntia pseudo-udonis (Rauh & Backeberg) G. D. Rowley 1958 Tephrocactus rauhii Backeberg 1957, Opuntia rauhii (Backeberg)

G. D. Rowley 1958 Austrocylindropuntia lauliacoana F. Ritter 1981 Austrocylindropuntia machacana F. Ritter 1981

Plants forming broad mats or compact cushions, densely branched. Stem segments short cylindrical, sometimes ellipsoidal to subglobose, to 15 cm (5.9 in) long, prominently spirally tuberculate. Areoles borne high on tubercle shoulders. Leaves awl shaped, dark green, fairly persistent, to 7 mm (0.3 in) long. Areoles with glochidlike hairs that are sinuous, en

Austrocylindropuntiafloccosa, also illustrated on page 39; fruits and seeds illustrated on page 43
Spineless Stenocereus
Austrocylindropuntia cylindrica

tangled or straight, sometimes absent. Spines few, often 2, erect, awl shaped, yellow, straight, about 2 cm (0.8 in) long. Flowers yellow or orange, 2.5-3 cm (1-1.2 in) long; pericar-pels with areoles above, spineless. Fruits truncate globose, sometimes with tubercles, slightly hairy. Distribution: Andean uplands of northern Peru, south to La Paz, Bolivia.

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