Summary
Solanum chiapense was first described by K.Roe in Brittonia 19: 367. 1967. It is small tree with white or violet flowers and its habitat is in Mexico (Chiapas) and Guatemala (.Huehuetenango). |
Solanum chiapasense K.Roe
TAXONOMY
Solanum chiapasense K.E. Roe
Brittonia 19: 367. 1967.
Solanum chiapasense K.E. Roe Brittonia 19: 367. 1967.
Solanum chiapasense K.E. Roe
Brittonia 19(4): 367. 1967.
Type - protologue
Mexico: Chiapas: 4 km SW of Las Rosas on road to Soyatitán and Venustiano
Carranza, ca. 900 m, 8 Aug 1965, K. Roe, E. Roe & S. Mori 986 (HT:
WIS; IT: DS, ENCB, US).
Classification according to Nee, M. 1999. Synopsis
of Solanum in the New World. In: M. Nee, D.E. Symon, R.N. Lester and J.P. Jessop
(editors). Solanaceae IV. Pp 285-333. Royal Botanical Gardens Kew.
Genus: Solanum L. 1753. Type S. nigrum L.
Syn. Androceras Nutt., 1818. Bassovia Aubl. 1775; Cliocarpus
Miers, 1849; Cyphomandra Sendtn., 1845; Diamonon Raf., 1836; Dulcamara
Moench, 1794; Melongena Mill., 1768; Pallavicinia De Notaris,
1847; Pionandra Miers, 1845; Solanocharis Bitter, 1918
Subgen. 2. Solanum. Type S. nigrum L.
Syn. subgen. Minon Raf., 1840. Type S. pseudocapsicum L.,
subgen. Potatoe (G. Don) D’Arcy, 1972
Section 14 Brevantherum Seithe, 1962. Type S. erianthum D.
Don.
Subsection 5 Asterochlaena Lowe, 1868. Type: S. auriculatum
Ait. = S. mauritianum Scop.
Series 2
S. chiapense Roe., Brittonia 19: 367. 1967. Mid elevations, southern
Mex., Guat.
MORPHOLOGY
Ref. Roe K.E. 1967a. A revision
of Solanum , section Brevantherum in North and Central America.
Brittonia 19:353-373.
Solanum chiapasense Roe sp. Nov.
Arborescens; rami juniores granuloso-tomentosi, pilis multangulis et echinoideis;
folia integra, basi breve attenuata, saepe abrupta, et in petiolum anguste decurrentia;
calycis lobi saepe inaequales; corolla exserta breviter ex calyce ante anthesin,
alba vel violacea 12-17 mm diametro; ovarium pauce pilosum vel fere tomentosum.
Shrubs or small trees 1-4 m high, forming flat-topped spreading crowns; trunks
to 8 cm in diam., bark greenish or yellowish brown. Young branches terete or
longi¬tudinally angled and grooved, whitish to yellowish granular-tomentose,
the hairs sessile and stalked, multangulate and echinoid. Leaves rather thin,
ovate, lance¬ovate or broadly elliptic, the apices acute, attenuate or acuminate,
the bases short attenuate, sometimes abruptly so, usually 13-33 cm long, 5-15
cm wide, scabridulous to velutinous above, the hairs spaced to overlapping,
sessile and short, stout-stalked, porrect-stellate and multangulate: tomentose
below. the hairs sessile and stalked, porrect-stellate, multangulate and echinoid:
axillary leaves usually lacking or rare on mature plants. Inflorescences 8-14
cm long; peduncles unbranched for 4-10 cm, 2.5-4.5 mm thick, granular-tomentose,
the hairs sessile and stalked, mult-angulate and echinoid; pedicels 2-6 mm long,
pubescent, the hairs sessile and short-stalked, multangulate and echinoid. Flower
buds subglobose to oblong at anthesis, tomentose. the hairs multangulate and
echinoid, often appressed; calyx lobe sutures evident as lines of minute white
hairs. Calyx lobed ½ way. the lobes acute to semi-ovate, often of unequal
size, i.e. the calyx not split along all sutures, 1.4-4.3 mm long by 1.4-2.6
mm wide in flower, 2.0-5.6 mm by 2.6-4.4 mm in fruit, glabrous or with occasional
simple or stellate hairs within. Corolla only weakly exserted from calyx at
anthesis, white or violet, 12-17 mm across, the lobes with few simple or stellate
hairs within. Anthers 3.1-4.7 mm long, inserted on corolla tube 1.7-1.9 mm above
base, the filaments 1.4-1.6 mm long. Ovary sparingly to moderately pubescent.
Style glabrous or with occasional stellate hairs on lower ½. Fruit 12-14
mm in diam., yellow when ripe. glabrescent. Seeds 1.7-2.4 mm long, 1.4-1.9 mm
wide. Chromosome number: 2n = 24 (voucher: Roe, Roe & Moril 986).
Solanum chiapasense apparently is closely related to S. pulverulentifolium but
can readily be distinguished by its dark green instead of whitish upper leaf
surfaces, larger calyx lobes, and weaker corolla exsertion from the calyx at
anthesis.
Ref, Gentry & Standley Flota of Guatemala
Fieldiana 24,1974 p111
Solanum chiapasense Roe, Brittonia 19: 367. 1967.
Thickets, 1,000-2,100 m.; Huehuetenango. Mexico (Chiapas) type from 4 miles
southwest of Las Rosas, Roe et al. 986.
An unarmed shrub or small tree, 1-4 m. tall, the young branches stellate-pubescent,
the hairs sessile and short stipitate-stellate, with few or many rays; leaves
ovate, lanceolate-ovate or elliptic, mostly 12 -30 cm. long, 5-15 cm. wide,
the apex acute to attenuate, the base attenuate, asperous to velutinous, the
hairs simple and sessile-stellate, with few rays above, densely stellate-pubescent,
the hairs sessile and short stipitate-stellate, with few or many rays below;
petioles 2.5-8 cm. long; axillary leaves usually absent; inflorescence cymose,
pseudoterminal, becoming lateral, dichotomously branched, long pedunculate,
the peduncle 4-10 cm. long, the hairs sessile or stipitate-stellate, with many
or few rays; pedicels 2-5 mm. long, pubescent, the stellate hairs with many
or few rays; flower buds subglobose to oblong; calyx lobed to the middle, the
lobes triangular to ovate, 1.5-4.3 mm. long, glabrous or occasionally pubescent
within; corolla white or violet, the limb 12-20 mm. wide, parted to below the
middle, the lobes 5-7.5 mm. long; filaments about 1.5 mm. long; anthers 3-4.5
mm. long; ovary pubescent; style glabrous or stellate-pubescent; fruit yellow,
12-14 mm. in diameter, glabrescent; seeds 1.7-2.5 mm. long.
GEOGRAPHICAL DISTRIBUTION
Classification according to Nee,
M. 1999. Synopsis of Solanum in the New World. In: M. Nee, D.E. Symon, R.N.
Lester and J.P. Jessop (editors). Solanaceae IV. Pp 285-333. Royal Botanical
Gardens Kew.
Mid elevations, southern Mex., Guat.
Ref. Roe K.E. 1967a. A revision of Solanum , section Brevantherum in North and Central America. Brittonia 19:353-373.
This species is an occasional to common weed in roadside thickets throughout the Chiapas Highlands, extending into Guatemala. It is most often associated with Quercus scrub and thorn-scrub vegetation from 600 to 2100 m.
Gentry & Standley Flota of Guatemala Fieldiana 24,1974 p111
Thickets, 1,000-2,100 m.; Guatemala: Huehuetenango. Mexico (Chiapas) type from 4 miles southwest of Las Rosas, Roe et al. 986.
NEW: DISCUSSION FORUM
Click on logo below to go the Discussion Forum
SPECIES INFORMATION OF PRECEEDING MONTHS SEE:
EARLIER CONTIBUTIONS TO THIS SITE
These documents are in PDF format
You'll need the free Adobeİ Acrobatİ Reader to read it.
If you need the Adobe Acrobat reader, you can
