scallions 的鑑定

A shrubby weed found growing with Breynia disticha in a planter bed. I had previously misidentified observations of the same plant as Exallage auricularia. Puff et al. (2021) in the Flora of Thailand account has stated that E. auricularia has pubescent leaves and stems, but the leaves and stems of this species are mostly glabrous except for being minutely hairy along the edges of the stem. This particular species keyed out to S. ocymifolia in Wong et al. (2019).

Pic 1-2: habit
Pic 3-4: detail of an inflorescence, with the corolla and bristle-like stipule
Pic 5-7: undersides of leaves
Pic 8-9: detail of teeth on edges of leaves
Pic 10-12: bristle-like stipules
Pic 13-14: 4-lobed calyx
Pic 15-16: oblong capsules (calyx after maturity) formed, each capsule containing 2 seeds. The swelling is localised at the base of the capsule, where said capsule will dehisce (split) from the base.
Pic 17-18: detail of corolla; corolla tube measuring about 2 mm long
Pic 19-20: oblong seeds, showing the ventral (pic 19) and dorsal (pic 20) seed surface. Note the reticulate dorsal seed surface.

49 xprf/BrazilianTeam/UAV-RGBphotos/DJI_20230527174411_0022_V.JPG Drone photographs photograph 2023-05-27T05:44:11 PM Blechnum orientale Plantae Tracheophyta Polypodiopsida Polypodiales Blechnaceae Blechnum orientale species identi app Pl@ntNet 100 Human Jefferson Prado Yes 29/05/2023 ICBN 1 1 individuals 1,355967111 103,811592 WGS84 15 1,35596711111111/103,811592027778 decimal degrees Singapore Asia Singapore SG Singapore not applicable Windsor Nature Park, surroundings of the Station Ranger. Secondary forest

Best distinguished by its 2-lobed capsules, of which the top pops off like a lid (thus the term "circumscissile") and the seeds with an X-shaped groove on the adaxial surface (Chen et al., 2011; Wong et al. 2019; Puff et al., 2021).

Pic 1-2: habit
Pic 3-4: inflorescence
Pic 5: hairy stem
Pic 6: detail of unripe and ripe capsules in an infrutescence - one of the capsules has dehisced, revealing the inside which holds 2 seeds each
Pic 7-8: adaxial surface of leaf
Pic 9-10: abaxial surface of leaf showing hairy midrib and scabrid margins
Pic 11-13: macro view of stem, showing hairs in finer detail
Pic 14-18: detail of lid of 2-lobed capsule and seeds - note the X-shaped groove on the adaxial surface of the seed.