MainDescriptionReferences

Puya serranoensis Rauh  diagnose
plant grows singularly, stemless, flowering to 50 cm high. leaves numerous, forming a to 30 cm high and 50 cm wide rosette; sheath distinct, roundish, 3–3,5 cm wide, 2,5–3 cm high, underneath chestnut brown, in the upper third dusty felt like hairy, upperside shiny white, towards the top brown, forming a to 6 cm thick pseudobulb; blade 30–60 cm long, narrow, above the sheath 8–10 ( –12) mm wide, tapering to a long, filiform, bent over tip, underneath whitish grey felt with long twisted scales, upper side becoming glabrous, green, edges with faint, small, brownish hooked spines; 6–15 mm apart; leaves* tips soom drying, old dry leaves therefore overhanging. inflorescence: peduncle 15–20 cm long, 8 mm thick, greenish-reddish-brownish, felt like scaled; peduncle bracts erect, the bottom ones subfoliate, with short, reddish, white scaled, sheath with fine spines on the edge and a filiform blade, the upper ones acuminate, bladeless inflorescence about 30 cm long, 8 cm broad, laxly once-branched, with ± 9, short (1–2 cm long) stem, to 9 cm long, to 12-flowered, erect to spreading sidespikes; side spikes much longer than the sheath of the primary bracts; top spike to 15 cm long, much longer than the side branches; the axis thin, scaled; primary bracts the basal ones similar to the upper peduncle bracts, ovate, long acuminate, the upper ones longish ovate, edges fine and scattered scaled, reddish scales; floral bracts ovate acuminate, 1–1,5 cm long, thin, when dry prominently nerved scattered flaky scaled, edgee irregularly weakly spined, longer than the thin, erect, 6–7 mm long, scaled pedicel, but shorter than the sepals. flowers: sepals 8–10 mm long, 5–6 mm wide, short tipped, the adaxial pair indistinctly keeled, pink, scattered lax flaky scaled, with entire edge; petals longish ovate ± 16 mm long, in the upper third 9–11 mm wide, eligulat, at anthesis erect with a little bent tips, the upper half metallic dark bluish green, toward the base white, postfloral hardly spirally twisted, when dry very dark blue green. stamens with whitish yellow anthers a little shorter than the petals; filament white, flat ribbon like. pistil: style with the stigma shorter than the stamens. fruits not known.

Translated by Butcher from: Rauh 1983a. (protologue) Bromelienstudien (Mitteilung 12). I. Neue und wenig bekannte Arten aus Peru und anderen Ländern .