what are the characteristics of yakal tree? and Darmera peltata #9

what are the characteristics of yakal tree?

inflorescence best answer:

Answer by Dylan Brett
synonym: shorea ciliata (non king); shorea plagata foxworthy
common name: yakal
local name: yakal
description: very large tree, 25-30 tall, 1m or more in diameter. leaves 6.5-12cm L x 2.5-6.5cm w, ovate, thinly coriaceous, somewhat lustous above, glabrous or somewhat densely cream lepidote beneath the nerves excepted; base cuneate to obtuse, subequal; acumen to 1.5cm long, slender, tapering; nerves 8-9 pairs, slender, somewhat elevated beneath, evident but more or less applanate above as also the midrib, arched with somewhat prominent glabrous pore-like domatia; petiole 11-25mm long, slender, geniculate. inflorescence paniculate, terminal or axillary, to 9cm long, singly-branched; branchlets short few-flowered. flowers pale to rusty yellow with a sweet odor. sepals broadly ovate, concave, imbricate, pubesvent outside, smooth within; 1.5mm long and wide. petals oblong lanceolate, rusty yellow, more or less twisted in bud; stamens 32, subequal; filaments compressed; tapering; anthers oblong, glabrous, the outer cells tuberculate at base; appendages exceeding anther apex, densely setose; ovary ovoid, tapering into a prominent stylopodium; style short, galbrous.
distinguishing features: ovary with prominent stylopodium; stamens 32. petiole dark green, nerves alsmost as distinct above as below. Wood very hard, dark brownish yellow, resinous.
distribution: luzon (quezon, camarines); samar; mindanao (zamboanga, agusan, davao). endemic.
habitat: in primary forests at low altitudes.
phenology: flowering in may (zamboanga).
ecological status: endangered due to logging and kaingin-making.
economic importance: for high grade construction, bridges and wharves, mine timber and other installations requiring high strength and durability; wood extractives have tumor-inhibiting capacity.

inflorescence

Darmera peltata #9


Best viewed @ large size

Saxifragaceae - S.W. Oregon and N.W. California
Formerly Peltiphyllum peltatum
Indian Rhubarb, Umbrella Plant
Shown: Detail of branched inflorescence

"Darmera peltata (Indian rhubarb or, ambiguously, "umbrella plant") is the only species within the genus Darmera in the family Saxifragaceae. It is a slowly-spreading rhizomatous perennial from mountain streamsides in woodland in the western United States (southwestern Oregon to northwestern California).

"In late spring the flowers emerge before the leaves, with rounded cymes of numerous five-petalled white to bright pink flowers (measuring up to 1.5cm across each) borne on flower stems up to 2m long. The leaves are peltate, rounded, deeply lobed, coarsely-toothed, conspicuously veined and dark green, also on stems up to 2m in height. The leaves turn red in autumn.

"In gardens, Darmera peltata flourishes in pond margins and bog gardens, where it forms an imposing umbrella-like clump. It is suited to smaller gardens where there is no room for Gunnera manicata or Gunnera tinctoria, unrelated plants that are somewhat similar in appearance, but much larger." (Wikipedia)

Mature leaves to 60 cm across

Additional views:
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Photographed in San Francisco Botanical Garden - San Francisco, California

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