Manihot tomentosa (1827)
Maihot tomontosn|木薯族
Manihot tomentosa (1827)
Ten ways of seeing
- measured cast amber
- upright 1.69 : 1
First Look
竖划三寸，当千仞之高；横墨数尺，体百里之迥。
—— 南朝宋·宗炳《画山水序》
A vertical stroke of three inches stands for a cliff of a thousand fathoms; a few feet of ink holds a hundred li.
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 14 points further left than the lower — a living thing, not a diagram.
Name and Thing
The binomial is Manihot tomentosa: 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 木薯族 is a modern rendering of the Latin, not an old garden name.
Form and Colour
Measured on this plate: flower colour is sparing, 0.7% of the sheet against 8.3% of foliage, the cast tending amber — as with pale or white blooms, outline and tone do the talking. Tropical plants defy temperate habits: heavy, saturated flowers with strong scent, leathery or dissected leaves, stems that climb, swell, or reduce to spines.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 takes about 30% of the sheet, centred above centre — the easy measure most florists kept to.
Line and Colour
The first half of the nineteenth century moved from copper to steel to lithography; stipple could render the softest transition. 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
海客谈瀛洲，烟涛微茫信难求。
—— 唐·李白《梦游天姥吟留别》
Seafarers talk of Yingzhou, lost in mist and waves, truly hard to find.
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 China these plants carry no classical symbolism; their meaning is newness — new worlds, new species, new trade routes. They show natural history's expanding edge. Meanings change their tune: the same flower can say opposite things within a century.
Season and Place
flowering follows the first rains, so a month on the plate often means 'after the rain'. Central and South America, Southeast Asia, India, Ceylon. Eighteenth- and nineteenth-century artists either sailed with the ships or drew from living specimens under glass. The year 1827 on the plate is that of publication, not of flowering — the gathering came a year or two earlier. The bud and the ripe fruit on one branch tell the season; the name in the title often tells the journey.
The Book and the Hand
“Plantarum Brasiliae icones et descriptiones hactenus ineditae” carries only Johann Baptist Emanuel Pohl'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
Appreciation is not knowledge but habit — one more look each time. A flora exists to be consulted; look long enough and you forget to consult — someone in 1827 gave a whole day to a single flower.
About this plate
Manihot tomentosa (1827) is plate 43, from Plantarum Brasiliae icones et descriptiones hactenus ineditae, drawn by Johann Baptist Emanuel Pohl. This public-domain plate is reproduced at high resolution, free to view and download. Publication: Vienna, Antonii Strauss, 1827.
