| Character | A. hawksworthii | A. aureum subsp. aureum | ||||||
|---|---|---|---|---|---|---|---|---|
| Shoot color | Pistillate plants pale green; staminate plants becoming pale yellow with age |
Both pistillate and staminate plants pale yellow to yellow-brown |
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| Growth form | Shoots relatively tall, ca. 15–25 cm, few shoots arising from infection |
Shoots relatively short, ca. 7–15 cm, numerous shoots arising from infection |
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| Witches' brooms | Extensive | Absent | ||||||
| Inflorescence | Long and open, ca. 1.5–2.5 cm long, bearing 6–9 fertile nodes, pistillate inflorescence darkened |
Short and densely clustered, ca. 1.0–1.3 cm long, bearing 2–4 fertile nodes, pistillate inflorescence pale yellow |
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| Anthesis | Periodic: February and possibly June and October |
Continuous (at least during dry season) | ||||||
| Sexual dimorphism | Extreme | Moderate | ||||||
| Staminate flower | ||||||||
| segment color | Vivid red inside, same as shoots outside | Both surfaces same as shoots | ||||||
| mature buds | Elongate, flattened, 3 mm long | Rounded, 1.5 mm long | ||||||
| diameter | 3 mm | 2 mm | ||||||
| lobe width | 1.5 mm | 1.0 mm | ||||||
| anther diameter | ca. 0.75 mm | ca. 0.5 mm | ||||||
| nectary | ca. 1.0 mm | ca. 0.5 mm | ||||||
| Pistillate flower | ||||||||
| stigma | Not exceeding length of perianth lobes | Exceeding perianth lobes by ca. 0.3 mm | ||||||
| color | Stigma, lobes, and bracts dark brown-gray | All flower parts and bracts same as shoots | ||||||
| Fruit | ||||||||
| equatorial line | Approximately medial | Approximately one-third below apex | ||||||
| surface | Not glaucous (?) | Light glaucous when living | ||||||
| shape and size | Narrowly elliptical, 4.0 x 1.5 mm | Broadly elliptical, 3.5 x 2.5 mm | ||||||
| Pedicel length at dispersal |
2 mm | 1 mm | ||||||
| Dispersal period | Periodic: May–June and possibly September and December |
Continuous (at least during dry season) | ||||||
| Distribution | Highlands of west central Belize | Highlands of central Guatemala | ||||||
| Hosts | Pinus caribaea var. hondurensis Pinus oocarpa |
Pinus pseudostrobus Pinus montezuma |
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