Dioscorea triphylla

Twelve ways of seeing

• measured cast yellow-green
• upright 1.58 : 1
• published 1781
• Plate 149

Not a catalogue entry but a way of looking: how to stand, what to notice, how the line was cut, when it flowers, where it came from, who made it — and then the poems and the classics that taught China to see the same flower. Read the twelve in order and the plate opens.

1. 01

   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 where the yellow is deepest: the whole tonal order is measured from that patch.

2. 02

   Name and Thing

   The binomial is Dioscorea triphylla: 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 薯蓣目 is a modern rendering of the Latin, not an old garden name.

3. 03

   Form and Colour

   Measured on this plate: flower colour covers 27.4% of the sheet, foliage 0.1%, 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. Filed under yellow — a honey-yellow, built in washes from a pale ground. Read the outline, then the colour layers, then the brush.

4. 04

   Composition

   Tall and narrow, the plant rising in one movement with generous margins — the upright format of most floras. (about 1.58 : 1) No details are appended: a plate for looking, not for keying out. The plant fills 61% of the sheet, centred a little left of centre — the herbarium way, drawn to be read whole. Cover the margins with your thumb and the plate suffocates; uncover them and the flower breathes again.

5. 05

   Line and Colour

   Eighteenth-century plates are mostly copper engraving: hatched lines for shadow, then hand-colouring by another hand. Decide first whether it was printed or painted; only then discuss whether it is beautiful.

6. 06

   Season

   Plates usually record flowering, the fortnight when a plant is most identifiable; the rest of the year it is only a mass of leaves. The year 1781 on the plate is that of publication, not of flowering — the gathering came a year or two earlier. Note the season. Phenology is the most practical tool of appreciation.

7. 07

   Provenance

   Various: local hillside or a plant brought from overseas. The nineteenth-century botanic garden and glasshouse were their first address away from home. The volume was made in 1781-1793, when most of this knowledge came from living plants under glass.

8. 08

   The Book and the Hand

   “Icones Plantarum Rariorum” was drawn by Nikolaus Joseph Freiherr von Jacquin and published 1781-1793. This plate is Plate 149. The image is public domain; the hand-colouring is still one person's hand.

9. 09

   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 yellow the corolla becomes its resting point.

10. 10

    The Written Tradition

    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 to the object; colour according to kind; planning the placing; transcribing and copying.

    China had the Bencao Gangmu and the Illustrated Study of Plant Names and Realities; Europe moved from herbal woodcuts to chromolithography. Both trusted pictures to finish what words could not. Keep the line; it will surface the next time you meet the same plant.

11. 11

    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. This plate leans yellow, which in flower language adds one more degree of feeling. Meanings change their tune: the same flower can say opposite things within a century.

12. 12

    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.