Material and provenance of the seeds studied
The study by Jara-Peña and coauthors covers seeds collected in the Peruvian department of Apurímac. The species was described in the comparison as a mat-forming plant, distinct from the shrubby and tree-like cacti compared in the same experiment. Today's accepted name is Austrocylindropuntia floccosa (Salm-Dyck) F.Ritter. Older literature also uses Opuntia floccosa. [Jara-Peña et al. 2024] [2-WWW]
Germination
Before the main experiment, seeds were lightly rubbed with fine sandpaper. Each combination had five replicates of 25 seeds placed on 1% agar. Incubation lasted 30 days, and temperature ranged between 18 and 25°C. The illuminated treatment received 12 hours of light daily, while the other remained covered with aluminium foil. [Jara-Peña et al. 2024]
Table 2 reports 28,0% germination in light and 32,8% in darkness. The authors described the response as photoblastically neutral. The data show the ability to germinate under both conditions after the preparation used. The timing and success of emergence in other seed batches also depend on maturity, storage and seed-coat condition. [Jara-Peña et al. 2024]
Significance for sowing
In the study, light scarification preceded both lighting treatments, so the result describes the combined effect of this seed history and subsequent incubation. The response of A. floccosa differed from that of Cumulopuntia ignescens, whose seeds germinated only in light under the same conditions. The two species therefore require separate interpretation of propagation data. [Jara-Peña et al. 2024]
Synonyms and names in the literature
Andinopuntia floccosa · Andinopuntia floccosa subsp. yanganucensis · Austrocylindropuntia blancii · Austrocylindropuntia floccosa subsp. crispicrinitus · Austrocylindropuntia floccosa subsp. yanganucensis · Austrocylindropuntia hirschii · Austrocylindropuntia machacana · Austrocylindropuntia punta-caillan · Austrocylindropuntia tephrocactoides · Austrocylindropuntia yanganucensis · Cylindropuntia tephrocactoides · Opuntia atroviridis · Opuntia atroviridis f. longicylindrica · Opuntia atroviridis f. parviflora · Opuntia atroviridis f. paucispina · Opuntia blancii · Opuntia crispicrinita · Opuntia crispicrinita subvar. flavicoma · Opuntia crispicrinita var. cylindracea · Opuntia crispicrinita var. tortispina · Opuntia cylindrolanata · Opuntia floccosa · Opuntia floccosa subvar. aurescens · Opuntia floccosa var. canispina · Opuntia floccosa var. crassior · Opuntia floccosa var. denudata · Opuntia floccosa var. ovoides · Opuntia hempeliana · Opuntia hirschii · Opuntia lagopus var. aureopenicillata · Opuntia pseudoudonis · Opuntia punta-caillan · Opuntia rauhii · Opuntia tephrocactoides · Opuntia udonis · Opuntia verticosa · Opuntia yanganucensis · Tephrocactus atroviridis · Tephrocactus atroviridis var. longicylindricus · Tephrocactus atroviridis var. parviflorus · Tephrocactus atroviridis var. paucispina · Tephrocactus blancii · Tephrocactus crispicrinitus · Tephrocactus crispicrinitus subvar. flavicomus · Tephrocactus crispicrinitus var. cylindraceus · Tephrocactus crispicrinitus var. tortispinus · Tephrocactus cylindrolanatus · Tephrocactus floccosus · Tephrocactus floccosus subvar. aurescens · Tephrocactus floccosus var. canispinus · Tephrocactus floccosus var. crassior · Tephrocactus floccosus var. denudatus · Tephrocactus floccosus var. ovoides · Tephrocactus hirschii · Tephrocactus lagopus var. aureopenicillatus · Tephrocactus pseudoudonis · Tephrocactus punta-caillan · Tephrocactus rauhii · Tephrocactus udonis · Tephrocactus verticosus · Tephrocactus yanganucensis [2-WWW]