Commelinales and Zingiberales Week: Commelinaceae: Dictyospermum

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Mayur Nandikar

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Feb 7, 2011, 9:18:47 AM2/7/11

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DICTYOSPERMUM Wight,

Dictyospermum Wight, Icon. Pl. Ind. Orient. 6: 29. 1853.

Type : D. montanum Wight (Lectotype).

Greek dictyon “net” and sperma “seed”

Herbs perennial. Rhizomes long. Stems erect or ascending. Leaves alternate, mostly aggregated at apex of stems. Cincinni long, with numerous flowers, forming terminal panicles; involucral bracts small. Flowers actinomorphic. Sepals free, boat-shaped. Petals free, white. Fertile stamens 3, equal, middle one inserted opposite petal; filaments glabrous, posterior; anther locules longitudinally dehiscent; staminodes 3; antherodes 2-lobed, horizontally divergent. Ovary 3-loculed; ovules 1 per locule. Capsule 3-valved, globose, trigonous. Seeds 1 per valve, oblong, reticulate or not; hilum linear, embryotega dorsal.

Four or five species in tropical Asia.

Here is presenting D. ovalifolium

Thank you

--
Mr. Mayur D. Nandikar,
Research Student,
Department of Botany,
Shivaji University,
Kolhapur.

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Mayur Nandikar

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Feb 8, 2011, 2:19:32 AM2/8/11

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Hello

*DICTYOSPERMUM* Wight,

*Dictyospermum** *Wight, Icon. Pl. Ind. Orient. 6: 29. 1853.

Type : *D. montanum *Wight (Lectotype).

Greek *dictyon *“net” and *sperma “*seed”

Herbs perennial. Rhizomes long. Stems erect or ascending. Leaves
alternate,
mostly aggregated at apex of stems. Cincinni long, with numerous
flowers,
forming terminal panicles; involucral bracts small. Flowers
actinomorphic.
Sepals free, boat-shaped. Petals free, white. Fertile stamens 3,
equal,
middle one inserted opposite petal; filaments glabrous, posterior;
anther
locules longitudinally dehiscent; staminodes 3; antherodes 2-lobed,
horizontally divergent. Ovary 3-loculed; ovules 1 per locule. Capsule
3-valved, globose, trigonous. Seeds 1 per valve, oblong, reticulate or
not;
hilum linear, embryotega dorsal.

Four or five species in tropical Asia.

Here is presenting *D. ovalifolium*

*
*

Thank you
--
Mr. Mayur D. Nandikar,
Research Student,
Department of Botany,
Shivaji University,
Kolhapur.