Systematic study in Dipcadi ursulae (Asaparagaceae, Scillioideae) from Maharashtra, India
Author
Rodrigues, Hensal Salvador
0000-0002-1692-3227
R. D & S. H. National College, Department of Botany Bandra (W), Mumbai- 400050, Maharashtra, India.
Author
Dutta, Suchandra Ranjit
0000-0001-6448-2203
R. D & S. H. National College, Department of Botany Bandra (W), Mumbai- 400050, Maharashtra, India.
Author
Chakral, Kiran Gangadhar
0000-0003-2088-3405
R. D & S. H. National College, Department of Botany Bandra (W), Mumbai- 400050, Maharashtra, India.
text
Phytotaxa
2024
2024-06-19
653
3
241
260
http://dx.doi.org/10.11646/phytotaxa.653.3.4
journal article
10.11646/phytotaxa.653.3.4
1179-3163
13217005
1.
Dipcadi longiracemosum
(Deb & Dasgupta) H.Rodrigues, S.R.Dutta & Chakral
,
stat. nov.
(
Fig. 2
,
3
)
=
Dipcadi ursulae
var.
longiracemosum
Deb & Dasgupta 1976: 823
;
Deb & Dasgupta 1977: 66
;
Deb & Dasgupta 1981: 11
;
Bole & Pathak 1988: 319
;
Lakshminarasimhan 1996: 133
; Almeida 2009: 178;
Nayar
et al.
2014: 1553
; Mao & Dash 2020: 196. ≡
Ornithogalum ursulae
var.
longiracemosum
(Deb & S.Dasgupta) J.C.
Manning & Goldblatt 2004: 552
.
Type:—
INDIA
.
Gujarat
:
Junagadh
,
Girnar Hill
,
25 August 1958
,
Bole
743
(
Holotype
BLAT!;
ibid,
29 August 1952
,
Bole 851
(
Paratype
BLAT
!)
Bulbs tunicate, ovoid-ellipsoid, neck absent sometimes up to
1.2 cm
long, 3.0–3.2 × 3.0–
3.6 cm
propagating vegetatively by bulblets and splitting of the mother bulb. Roots fibrous, fleshy, arise from the basal disc. Leaves 4 to 8, 17.0–100.0 ×
1.6–3.7 cm
, flat and strap-shaped, not channelled, glabrous, green, basal underground portion white, apex involute, leaves shorter than inflorescence, 4 to 6 leaves persistent in infructescence, 10 to 20 veined. Scape 1 (or 2), 30–60 × c.
0.6 cm
long, glabrous, terete and green; raceme,
12–20 cm
long, dense. Pedicel 5.0–8.0 × c. 1.0 mm long. Bract 20–42 × 3–4.0 mm long, green, coriaceous with scarious margins, clasp the pedicel, base ± triangular, apex 12.0–32.0 mm, acuminate, completely scarious in infructescence, 5-nerved. Flowers 32 to 56 per scape,
10–13 mm
long, tubular, white with green stripe, mild fragrant at night and day; perianth arranged in two rows of 3 each, outer perianth
1 mm
longer than inner perianth; perianth tube, c. 5.0 × 3.0–4.0 mm, green; outer perianth lobes 6.0–7.0 × c. 3.0 mm, oblong, recurved c. 5.0 mm, white with central olive green band, tip hooded and papillose; inner perianth lobes c. 6.0 × 2.0–3.0 mm, recurved c. 3.0 mm, ovate with acute apex, white with central olive green band, tip papillose, perianth tube equal to perianth lobes. Stamens 6, 4.0–5.0 mm long; filaments, 3.0–4.0 × c. 1.0 mm, narrowing towards the apex, white, adnate to perianth; anthers c. 2.0 × 1.0 mm, sagittate, not apiculate, dorsifixed, yellow, projecting out of tube c. 1.0 mm at anthesis, dehiscing longitudinally, filament twice as long as anther. Pistil
10–13 mm
long; ovary tricarpellary, c. 5.0 × 3.0 mm, trigonous obovoid, green, stipe absent, conspicuous septal nectary present in the ovary; style c. 6.0 × 1.0 mm, glistening white, cylindrical with longitudinal striations, style as long as the ovary; stigma c.
0.1 mm
, thicker than the style,
1 mm
in diameter, white, papillose, vaguely trigonous, each lobe is bilobed, the trilobed condition observed when the pistil is young, with 3 nectar droplets at the angle of the stigma lobes that project out of the tube at anthesis. Fruit loculicidal capsule, c. 17.0 × 12.0 mm, length longer than width, dehiscing longitudinally, pericarp thick, green when young and thin, light yellowish-green-brown at maturity, bracts persistent. Seeds, c. 6.0 × 4.0 mm, superposed, orbicular-ellipsoid, compressed with slightly raised margin; shiny black, 19 to 20 per locule.
Distribution:—
INDIA
,
Gujarat
, Junagadh, Girnar hill slopes
21° 31’ 59.6856’’ N
,
70° 31’ 27.5844’’ E
);
Maharashtra
, Ralegan.
Habitat:—
found on slopes of the hill
Phenology:—
August–October
Specimens examined:—
INDIA
,
Gujarat
: Junagadh, Girnar Hill, 25 August, 1958,
P.V. Bole
743
(
BLAT
!)
;
ibid
, 29 August, 1952,
P.V. Bole
851
(
BLAT
!)
;
ibid.,
02 September 2023
,
H. Rodrigues
&
Chakral
HSK222446, HSK222447, HSK222448, HSK222449, HSK222450
(
RDNCP
!)
.