Commelina longicaulis
块茎鸭跖草
Commelina longicaulis
Ten ways of seeing
- measured cast yellow-green
- upright 1.82 : 1
First Look
六法者何？一、气韵生动是也；二、骨法用笔是也；三、应物象形是也；四、随类赋彩是也；五、经营位置是也；六、传移模写是也。
—— 南齐·谢赫《古画品录》
The six laws: spirit resonance alive; bone-method in the brush; matching form; colour by kind; planning the placing; copying the masters.
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 8 points further left than the lower — a living thing, not a diagram.
Name and Thing
The binomial is Commelina longicaulis: 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 块茎鸭跖草 is a modern rendering of the Latin, not an old garden name.
Form and Colour
Measured on this plate: flower colour covers 6.7% of the sheet, foliage 0.0%, the cast yellow-green with a second note of amber. No other plate shares exactly this measure. A bulb of overlapping fleshy scales gives the lily its Chinese name, 'hundred-fold'; six tepals reflex as the flower opens, around six stamens with long, T-shaped anthers.No colour group is recorded. A single plant, laid out with nothing hidden.
Composition
The sheet is tall. No details are appended: a plate for looking, not for keying out. The plant covers only 7% of the sheet, centred near the 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. Take a loupe to three places: petal edge, leaf vein, caption. An unbroken line means engraving; colour crossing the outline means a hand. 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
故乡寒食荼醾发，百合香浓邸舍深。
—— 宋·宋祁《山橙花》
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
In the West the white lily is Marian purity, held by the angel of the Annunciation; in China the name sounds like 'a hundred years in harmony', a wedding wish. In a flora it is a species first and a symbol second; the order is worth keeping.
Season and Place
Early to high summer, June and July. Temperate north — China, Japan, Europe. Long used in Chinese medicine, lilies were hunted in East Asia by nineteenth-century collectors and transformed European gardens. The year 1781 on the plate is that of publication, not of flowering — the gathering came a year or two earlier. See this kind of plate in the flowering season if you can: once you have met the living flower, you stop reading only colour.
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. A flora exists to be consulted; look long enough and you forget to consult — someone in 1781 gave a whole day to a single flower.
About this plate
Commelina longicaulis is plate 109, 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.
