collecting in Mexico

 

Caprifoliaceae

The Caprifoliaceae of Mexico form an unusual disjunct phytogeographical link with the Flora of Eastern Asia where they are highly diverse. Some of the 36 genera of Caprifoliaceae can be found in their natural habitat in Mexico including many well-known, hardy, flowering shrubs such as Vesalea, Lonicera and Symphoricarpos. Mexico is home to 5 species of Vesalea (Mexican Abelias), 5 species of Symphoricarpos and 4 species of Lonicera ranging from climbers to shrubs, from bilabiate scented flowers pollinated by bees to long red tubular flowers pollinated by hummingbirds and from berries to wind dispersed achenes.

References:

Neville, G. 1940 'A Monograph of the Genus Symphoricarpos' Journal of the Arnold Arboretum 21:201-252. 1940

Rehder, A. 1903 'Synopsis of the genus Lonicera' Missouri Botanical Garden Annual Report 14:27–232.

Villarreal Q. JA. 2013. 'Sistematica del Genero Abelia (Caprifoliaceae) en México. Acta Botanica Mexicana' 102: 99-128.

Jose Angel Villarreal Q. 2000 'Flora del Bajio y de Regiones Adyacentes' Vol. 88.

Williams, J.K. 'A new species, Symphoricarpos guatemalensis (Caprifoliaceae), from Guatemala with a key to the Mexican and Guatemalan species' Sida 16(2): 273-280. 1994

Vesalea florbunda Lonicera pilosa f. schaffneri Subgenus Periclymenum subsection Phenianthi
Lonicera mexicana Subgenus Chamaecerasus section Isika subsection Purpurascentes Vesalea occidentalis

Key to the genera of Caprifoliaceae s.s in Mexico:

1a. Fruit an achene with persistent and accresent sepals .................................Vesalea

1b. Fruit a berry or drupe, sepals reduced and not accresent in fruit

2a. Flowers single and opposite in a spike ........................................Symphoricarpos

2b. Flowers paired or in whorls of 6 ............................................................Lonicera

Caprifoliaceae checklist in Mexico

Lonicera albiflora Torr. & A.Gray
Lonicera involucrata
(Richardson) Banks ex Spreng.
Lonicera mexicana
Rehder
Lonicera pilosa
Willd. ex Kunth
Symphoricarpos microphyllus
Kunth.
Symphoricarpos orbiculatus
Moench.
Symphoricarpos longiflorus
A.Gray
Symphoricarpos palmeri
G.N.Jones
Symphoricarpos parishii
Rydb.
Vesalea coriacea
(Hemsl.) T.Kim & B.Sun ex Landrein
Vesalea floribunda
M.Martens & Galeotti
Vesalea mexicana
(Villarreal) Wang, H.F. & Landrein
Vesalea occidentalis
(Villarreal) Wang, H.F. & Landrein
Vesalea subcoriacea
(Villarreal) Landrein

Key to the species of Lonicera

1. Flowers in 3-flowered cymes forming whorls at ends of branches, involucral bracts connate .................................................................................................................2

1. Flowers paired, axillary, paniculate or forming thyrses at ends of branches; involucral bracts not connate .................................................................................................3

2. Corolla tubular 3-5 cm long, red to orange, externally pubescent ...........L. pilosa

2. Corolla infundibuliform, 1.5-2 cm long, white to yellow-white, externally glabrous .............................................................................................................L. albiflora

3. Bracts and bracteoles large enveloping the ovaries, corolla orange to scarlet, fruits black surounded by two enlarged red bracteoles (Northern Mexico)....L. involucrata

3. Bracts and bracteoles reduced, corolla purple, Berries white (Southern Mexico)...............................................................................................L. mexicana

 

Subgenus Section Subsection Species in Mexico Distribution

Subgenus Chamaecerasus

Section Isika

Subsection purpurascentes

L.mexicana

Japan, Himalayas, China, Altai, North America, Mexico

 

 

Subsection distegia

L. involucrata

W North America

Subgenus Periclymenum

 

Subsection Phenianthi

L. pilosa

North America, Mexico, China

 

 

Subsection Cypheolae

L. albiflora

North America, China

Key to the species of Vesalea

1. Corolla tubular, 25-45mm long. Flowers single; nectary with three lines of dense glandular hairs at the base of the corolla tube. ....................................…..V.floribunda

2. Corolla infundibuliform and fragrant, 10-30mm long. Flowers single or paired, nectary a single line of dense glandular hairs at the base of the corolla tube. ..............…………3

3. Flowers single, rarely paired. ................................................…….….……………4

4. Corolla 10-18 mm long, leaves orbicular and inflorescence becoming spiny after fruiting. …………………………………….....………..V. subcoriacea var. spinosa

4. Corolla 20-30 mm long, leaves elliptic and plants not spiny. ……................……….5

5. Corolla with a narrow tube abruptly widening to a broad campanulate mouth; achene with an elongated apical sterile neck 2-3mm long; sepals tightly adpressed against corolla tube at anthesis. …………………..……..............……...…….V. occidentalis

5. Corolla with a narrow tube gradually widening to a campanulate mouth; achene with a short apical sterile neck to 1mm long; sepals spreading. …………..………V. coriacea

3. Flowers paired or single at base of the inflorescence. ……………..……………….6

6. Corolla 20-30 mm long, primary veins on leaves abaxially densely hispid. ...........................................................................................................….V .mexicana

6. Corolla 10-18 mm long, primary veins not densely hispid. …....……V. subcoriacea

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Caprifoliaceae of Mexico