|from Stevenson (1993)
|The Cycad Pages
- Zamia ipetiensis D.W. Stev., Brittonia 45(1): 7-9 (1993). H—NY
- "TYPE: Panama, 22 Jan 1989, D. Stevenson & I. Valdespino 1159 (holo NY iso FTG, MO, NY, PMA, U)."[NY][NY][NY][NY][NY][NY][NY][NY][NY]
Named for the area in Panama where it is endemic.
In many aspects Zamia ipetiensis is most similar to
Z. cunaria. These include general growth habitat,
solitary leaf production, leaf size and shape, leaflet size
and texture, wine red seed cones, and a few microsporangia
on the adaxial surface of the microsporophylls. However,
Z. ipetiensis is most easily distinguished from
Z. cunaria by its elongate but broadly obovate leaflets.
Zamia montana has a similar leaflet shape but its
leaflets are deeply grooved adaxially.
Distribution and habitat:
Zamia ipetiensis is endemic to a small area
in Panama where it occurs from 100-500 m in primary and secondary
rain forest and grows in clay soils.
Zamia ipetiensis is a very narrow endemic known from
only two populations. It is extremely threatened in the wild
because of habitat destruction for agriculture and is present
only because local people keep it at the margins of their gardens.
1997 IUCN Red List of Threatened Plants
Stem subterranean, subglobose, to 10 cm diam.
Cataphylls ovate, 3-4 cm long, 4-5 cm wide.
Leaves 1-3, 0.5-1.5 m long; petiole 15-50 cm long, sparsely to
densely prickled; rachis with 3-12 pairs of leaflets.
Leaflets narrowly to broadly oblanceolate, cuneate basally,
acuminate apically, margins finely serrulate in the tip, the larger
median ones 20-40 cm long, 5-8 cm wide.
Pollen cones cream to tan, cylindrical to
ovoid-cylindrical, 4-6 cm long, 1-1.5 cm diam.; peduncle 2-4 cm long.
Microsporophylls with sterile tip composed of six steeply
inclined facets surrounding a centrally depressed terminal facet, sporangia
present on both the adaxial and abaxial surfaces of the fertile region.
Seed cones wine red to dark red-brown, cylindrical to
ovoid-cylindrical, 15-20 cm long, 5-7 cm diam.
Seeds pink to light-red, 1.5-2 cm long, 0.5-0.8 cm diam.
2n = 23 (Caputo et al. Amer. J. Bot. 83: 1513-1520. 1996).