![Asclepias grandiflora [Pachycarpus grandiflorus] (1817) (Asclepias grandiflora [Pachycarpus grandiflorus] (1817)) - Drawings of plants collected at Cape Town](/upload/nat/drawings-of-plants-collected-at-cape-town/033-original.webp)
Asclepias grandiflora [Pachycarpus grandiflorus] (1817)
马利筋属、舌杯花属
Asclepias grandiflora [Pachycarpus grandiflorus] (1817)
Ten ways of seeing
- measured cast yellow-green
- upright 1.32 : 1
First Look
搜尽奇峰打草稿。
—— 清·石涛《苦瓜和尚画语录》
Exhaust the strange peaks, and then make the sketch.
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 right: the upper half carries 22 points further right than the lower — a living thing, not a diagram.
Name and Thing
No reliable binomial survives, so the printed title must serve. Neither name nor binomial survives: the printed title must do.
Form and Colour
Measured on this plate: flower colour covers 15.2% of the sheet, foliage 2.6%, 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 19% of the sheet, centred near the centre; the emptiness is where the eye rests.
Line and Colour
The first half of the nineteenth century moved from copper to steel to lithography; stipple could render the softest transition. Decide first whether it was printed or painted; only then discuss whether it is beautiful. 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. Meanings change their tune: the same flower can say opposite things within a century.
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 1817 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
“Drawings of plants collected at Cape Town” carries only Clemenz Heinrich Wehdemann's name. A plate is collective work: drawer, engraver and colourist were different hands, and the unnamed ones decided how good it looks.
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. The flower of that year is dust, yet its image on paper has outlived every living cousin.
About this plate
Asclepias grandiflora [Pachycarpus grandiflorus] (1817) is plate 33, from Drawings of plants collected at Cape Town, drawn by Clemenz Heinrich Wehdemann. This public-domain plate is reproduced at high resolution, free to view and download. Publication: 1817-1820.
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