Croton punctatum
巴豆亚科
Croton punctatum
Ten ways of seeing
- measured cast yellow-green
- upright 1.72 : 1
First Look
江馆清秋，晨起看竹，烟光日影露气，皆浮动于疏枝密叶之间。
—— 清·郑板桥《题画竹》
On an autumn morning at the river lodge I looked at the bamboo: mist, sunlight, dew, all drifting among the sparse and dense leaves.
The sheet is vertical: the eye climbs and settles in the upper half. Let the plant stand before you look for detail. Then step in close: watch where colour meets line, and whether the line ever breaks. Third, find the darkest small patch: the whole tonal order is measured from there. The pose leans left: the upper half carries 15 points further left than the lower — a living thing, not a diagram.
Name and Thing
The binomial is Croton punctatum: the first word is the genus it belongs among, the second the epithet that sets it apart. Two words carry a whole provenance. The Chinese name 巴豆亚科 is a modern rendering of the Latin, not an old garden name.
Form and Colour
Measured on this plate: flower colour covers 8.6% of the sheet, foliage 1.8%, the cast yellow-green with a second note of amber. No other plate shares exactly this measure. A botanical plate: one plant lifted from field or glasshouse and set at the centre of the sheet, root, stem, leaf, flower and fruit in turn, made legible, citable, transmissible.No colour group is recorded. Read the outline, then the colour layers, then the brush.
Composition
The sheet is tall. No details are appended: a plate for looking, not for keying out. The plant covers only 17% of the sheet, centred above centre; the emptiness is where the eye rests.
Line and Colour
Eighteenth-century plates are mostly copper engraving: hatched lines for shadow, then hand-colouring by another hand. There is evidence on the back too: the plate mark pressed into the paper, the slight relief of the pigment, lines worn shallow in a later printing. If you mean to copy it: take its skeleton, its margins and the order of its colours; the burin's hatching is the language of copper — suggest it with pencil density, do not imitate it stroke for stroke.
Poetic Resonance
天地有大美而不言，四时有明法而不议。
—— 《庄子·知北游》
Heaven and earth have great beauty and do not speak.
The poem gives the mood first and the picture supplies the form; set the line beside the plate and the corolla becomes its resting point.
Symbolism
The symbolism of such a plate lies not in flower lore but in record: the belief that a plant deserves to be drawn accurately — the plainest ethic of the scientific age. In a flora it is a species first and a symbol second; the order is worth keeping.
Season and Place
Plates usually record flowering, the fortnight when a plant is most identifiable. Various: local hillside or a plant brought from overseas. The nineteenth-century botanic garden and glasshouse were their first address away from home. The year 1781 on the plate is that of publication, not of flowering — the gathering came a year or two earlier. Read the locality and the flowering season both with a discount: one is hearsay, the other a ten-day peak.
The Book and the Hand
“Icones Plantarum Rariorum” carries only Nikolaus Joseph Freiherr von Jacquin's name. From drawing to plate the sheet passed through several hands — the engraver aimed at accuracy, the colourist at speed, and between them lies each plate's unevenness.
What to Take Away
Next time you stand before a flowering plant, give it three minutes: leaf arrangement, direction of the flower, the darkest patch. Two centuries on, the plant may still flower in some garden; the one on this sheet stopped in the season of 1781.
About this plate
Croton punctatum is plate 127, from Icones Plantarum Rariorum, drawn by Nikolaus Joseph Freiherr von Jacquin. This public-domain plate is reproduced at high resolution, free to view and download. Publication: Vindobonae, C.F. Wappler, 1781-1793.
