Cleome speciosa in FOI

[J.M. Garg]

Hi, Tabish ji,

Image of Cleome speciosa in FOI should be of Tarenaya hassleriana (Chodat) H. H. Iltis as per efi thread.

Pl. correct.
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With regards,
J.M.Garg

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[ushadi]

This is getting more confusing

I cant believe diagnosis can be based on stamen color only

Regards

Ushadi

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[Tabish]

Thanks Garg ji, for sorting out Cleome hassleriana and Cleome speciosa. Ushadi is rightly perplexed. I think one need not go into stamen color. The most easy to note difference between the two is that the petals are clawed in Cleoserrata speciosa, and they are not clawed in Tarenaya hassleriana. What is meant by clawed is that the petals are suddenly constricted at the base, having an apparent "stalk". FOI images of these will be corrected in shortly.

   Tabish

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[J.M. Garg]

Both can clawed as per Flora of China. 

[J.M. Garg]

Hi, Ushadi,

Main difference is based on the insertion point of stamens as I gave in my analysis. Stamen colour is just one of the difference we can easily rely upon along with other differences. 

I find this is very easy and correct way based on atleast 50 observations in efi site and as per efloras. 

To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/CANAwU1U3f3XVNEmsMJ1g81dYirxwGLH1E8tXQf7cD7xYfCfusw%40mail.gmail.com.

[J.M. Garg]

Hi, Tabish

Pl. see the following. Giving details from Flora of China:

Cleoserrata speciosa (Rafinesque) Iltis:

Herbs, annual, 0.5-1.5 m tall. Stems simple or sparsely branched, fluted, glabrous or sparsely glandular pubescent. Petiole 2-12 cm, glandular pubescent; leaflets (3 or)5-9; leaflet blades narrowly lanceolate-elliptic, 6-15 × 1-5 cm, both surfaces glabrate to glandular pubescent, base attenuate, margin entire or serrulate, apex acuminate. Inflorescences 15-50 cm but 20-60 cm in fruit, glandular pubescent; bracts narrowly ovate-cordate, 0.3-1.8 cm. Pedicel 1-5 cm, glabrous. Sepals green, lanceolate, 4-7 × 0.8-1.2 mm, equal, distinct, persistent, glandular pubescent, base cuneate, margin entire. Petals brilliant pink to purple but fading to pink or white by second day, rarely initially white, ovate, 1.5-4.2 × 0.8-1.1 cm, clawed. Androgynophore ca. 4 mm at anthesis; stamens 4-8.5 cm; anthers 6-10 mm. Pistil 6-10 mm; style 1-1.2 mm. Fruit gynophore 3-8.5 cm, with scars from filaments on ca. 1 cm of androgynophore and visible on ca. 1/4 of its length; capsule cylindric but irregularly contracted between seeds, 6-15 cm × 3-5 mm. Seeds 10-30 per capsule, pale green to brown, subspherical, 2.5-3.5 × 1-1.2 mm, tuberculate. Fl. Aug-Nov, fr. Sep-Dec.

Tarenaya hassleriana (Chodat) Iltis:

Herbs, annual, (0.5-)1-1.5 m tall. Stems branched, glandular pubescent. Stipular spines 1-3 mm. Petiole 2.5-7.5 cm, glandular pubescent, with scattered 1-3 mm spines; leaflets 5 or 7; leaflet blades elliptic to oblanceolate, 2-6(-12) × 1-3 cm, abaxially glandular pubescent, adaxially glandular, margin serrulate-denticulate, apex acute. Inflorescences 5-30 cm but 10-80 cm in fruit, pedunculate; bracts ovate, 1-2.5 cm. Pedicel 2-4.5 cm, glandular pubescent. Sepals green, equal, distinct, linear-lanceolate, 5-7 × 0.8-1.3 mm, reflexed after anthesis, persistent, glandular pubescent, margin entire, apex acuminate. Petals pink to purple but infrequently white or fading to white by second day, oblong to ovate, 2-3(-4.5) × 0.8-1.2 cm, clawed. Stamens purple, 3-5 cm; anthers green, 9-10 mm. Pistil 6-10 mm; style ca. 0.1 mm. Fruit gynophore 4.5-8 cm; capsule (2.5-)4-8 cm × 2.5-4 mm, in straight alignment with gynophore and pedicel, glabrous. Seeds 10-20 per capsule, dark brown to black, triangular to subspherical, 1.9-2.1 × 1.9-2.1 mm, tuberculate. Fl. (Apr-)May-Dec, fr. Jun-Dec.

Petals are clawed in both. You can see both at Cleoserrata speciosa and Tarenaya hassleriana

[J.M. Garg]

Hi, Ushadi,

Pl. see the main difference between the two genera:

Flora of China gives the following keys

Androgynophore 5-10 mm; gynophore 2-6 cm; nodal spines absent- Cleoserrata

Androgynophore absent; gynophore 4.5-8 cm; nodal spines present - Tarenaya

(prickles often present on petiole and major leaf veins).

Due to this, stamens are inserted together in a club like stub above the bottom in Tarenaya hassleriana, while these are inserted in the bottom in Cleoserrata speciosa.  

[J.M. Garg]

Now corrected in FOI link.