Family Zingiberaceae

From: Dr.Abdul Ghani Hussain MBChB., CTM
This is what I have on tribes of tribes of Zingiberaceae in Peninsular Malaysia & SIngapore:
Quote: Key to the tribes
1. Small plants up to 0.5-1m with inflorescence terminal on leafy shoots, flowers with a long-exserted stamen and a bifid lip attached to the filament. Flowers orange-yellow or violet-white ....... (1) Globbeae(Globba) Not in this combination ......................... 2
2. Medium sized plants from 50cm upwards with stout rhizomes radical inflorescence (i.e., terminal on specialized leafless flowering shoots arising directly from the rhizomes), and flowers of various colours with an undvided lip and anther with a long curved terminal anther appendages ..... 2. Zingibereae (Zingiber)
Not in this combination .................... 3
3. Flowers with well developed lateral staminodes ......... 3. Hedychieae
4. Flowers with lateral staminodes wanting or reduced to small teeth ... 4. Alpinieae
thus
1. Globbeae
2. Zingibereae
3. Hedychieae - includes Curcuma, Hedychium, Camptandra, Scaphochlamys, Kaempferia, Boesenbergia, Haniffia
4. Alpinieae - includes Plagiostachys, Alpinia, Etlingera, Hornstedtia, Amomum, Elettariopsis triloba, Geocharis, Geostachys, Elettaria, Elettariopsis.
I will detail out the genera key in my next posting.
Further to my earlier post on Ginger tribes below is the key to the Genera Hedychieae
1. Bracts joined along the margins in their lower part, forming pouches in which the flowers develop. Terminal parts of inflorescence with a coma ........ Curcuma
Bracts not joined, never forming a coma .............. 2
2. Filament lonf-exserted ............... Hedychium
Filament not exserted, shorter than lip ................. 3
3. Several flowers to each bract ......................... 4
One flower to each bract ................................... 5
4. Inflorescence enclosed in one main concave bract .... Camptandra
Several bracts forming the inflorescensc ....................... Scaphochlamys
5. Lip bilobed to the base, resembing a 4-meroud flower, violet or white .. ......................... Kaempferia Lip entire or shallowy bilobed ............................ 6
6. Inflorescence terminal on the leafy shoot ................. Boesenbergia
Inflorescence on a saperate shoot ............................... Haniffa
This is quoted from the book Gingers of Peninsular Malaysia and Singapore by K.Larsen, H.Ibrahim, S.H.Khaw and L.G.Saw, Natural History Publication (Borneo). 1999
Unquote Regards, Ghani

From The Families of Flowering Plants, L. Watson and M. J. Dallwitz

Zingiberaceae Lindl.


Including Amomeae (Amomaceae) A. Rich., Curcumaceae Dum. Excluding Costaceae

Habit and leaf form. Herbs; bearing essential oils. Perennial; with neither basal nor terminal aggregations of leaves; rhizomatous. Self supporting, or epiphytic. Mesophytic. Leaves evergreen; alternate; distichous; ‘herbaceous’, or leathery; petiolate, or subsessile, or sessile; sheathing (the sheaths often constituting pseudostems, cf. Musa). Leaf sheaths tubular, or not tubular; with free margins. Leaves usually without marked odour (often by contrast with aromatic roots and/or fruits); simple. Lamina entire; linear, or lanceolate, or oblanceolate, or oblong, or ovate; pinnately veined; cross-venulate (?).

General anatomy. Plants with silica bodies. Accumulated starch other than exclusively ‘pteridophyte type’.

Leaf anatomy. Epidermis containing silica bodies (spherical).

The mesophyll with spherical etherial oil cells; containing calcium oxalate crystals. The mesophyll crystals druses, or solitary-prismatic (no raphides). Minor leaf veins without phloem transfer cells (Zingiber). Vessels absent. Stem anatomy. Secondary thickening absent. Xylem with vessels (2 Renealmia species only), or without vessels (mostly). Vessel end-walls scalariform. Sieve-tube plastids P-type; type II.

Root anatomy. Root xylem with vessels. Vessel end-walls scalariform (nearly always), or scalariform and simple (occasionally).

Reproductive type, pollination. Plants hermaphrodite. Floral nectaries present. Nectar secretion from the gynoecium (via one or three glands, variously shaped, at the style base), or from the gynoecium and from the androecium (sometimes also from the staminodes). Entomophilous, or ornithophilous (the family exhibiting a variety of epigynous and staminodial nectariferous glands).

Inflorescence, floral, fruit and seed morphology. Flowers aggregated in ‘inflorescences’; in cymes, or in spikes. The terminal inflorescence unit cymose, or racemose. Inflorescences terminal; spikes or thyrses. Flowers bracteate; bracteolate, or ebracteolate; medium-sized; very irregular; zygomorphic. The floral asymmetry involving the perianth and involving the androecium. Flowers 3 merous; cyclic; obscurely pentacyclic. Perigone tube absent. Hypogynous disk absent.

Perianth with distinct calyx and corolla; 6; joined; 2 whorled; isomerous; different in the two whorls. Calyx 3; 1 whorled; gamosepalous; entire, or lobulate, or blunt-lobed; unequal but not bilabiate, or regular; valvate (or splitting on one side); with the median member anterior. Corolla 3; 1 whorled; gamopetalous; unequal but not bilabiate (the median petal usually bigger).

Androecium 5. Androecial members free of the perianth; coherent (the lateral members of the inner whorl fused to form a petaloid labellum, the laterals of the outer whorl when present sometimes appearing as lobes on the functional stamen); 2 whorled. Androecium including staminodes. Staminodes 4, or 2 (the lateral pair of the outer whorl present or absent, the outer median being missing, the fused laterals of the inner whorl forming the conspicuous labellum); external to the fertile stamens and in the same series as the fertile stamens; petaloid (the members of the outer whorl usually much smaller). Stamens 1 (the median, posterior member of the theoretical inner whorl); reduced in number relative to the adjacent perianth; oppositiperianthial. Anthers dehiscing via longitudinal slits; introrse; tetrasporangiate; appendaged, or unappendaged. Endothecium developing fibrous thickenings. The thickenings spiral. Anther epidermis persistent. Microsporogenesis successive. The initial microspore tetrads isobilateral (usually), or tetrahedral, or T-shaped, or linear. Anther wall initially with more than one middle layer (4 to 6). Tapetum amoeboid, or glandular. Pollen grains aperturate, or nonaperturate (usually); when aperturate, 1 aperturate; sulcate; 2-celled. Gynoecium 3 carpelled. Carpels isomerous with the perianth. The pistil 1 celled, or 3 celled. Gynoecium syncarpous; eu-syncarpous; superior. Ovary 1 locular, or 3 locular. The ‘odd’ carpel anterior. Gynoecium stylate. Styles 1; apical; much longer than the ovary (slender, passing between the thecae of the anther). Stigmas 1; wet type; papillate; Group III type. Placentation when unilocular parietal to basal, or free central (rarely); when trilocular, axile. Ovules in the single cavity when unilocular, 4–100; 4–50 per locule; arillate; anatropous, or orthotropous; bitegmic; crassinucellate. Outer integument not contributing to the micropyle. Embryo-sac development Polygonum-type. Polar nuclei fusing prior to fertilization. Antipodal cells not formed (the nuclei ephemeral). Synergids pear-shaped, or hooked. Hypostase present. Endosperm formation helobial. Embryogeny asterad.

Fruit fleshy, or non-fleshy; dehiscent, or indehiscent; a capsule, or capsular-indehiscent, or a berry. Seeds thinly endospermic. Perisperm present. Seeds with starch. Cotyledons 1. Embryo achlorophyllous (Zingiber sp.); straight. Seedling. Hypocotyl internode present (short to longish). Mesocotyl absent. Seedling collar not conspicuous. Cotyledon hyperphyll compact; non-assimilatory. Coleoptile present, or absent. First leaf dorsiventral. Primary root ephemeral. Physiology, biochemistry. Cyanogenic (?Hedychium), or not cyanogenic. Arthroquinones detected (Aframomum, Curcuma); derived from shikimic acid, or polyacetate derived. Proanthocyanidins present (usually), or absent (Globba); delphinidin (Brachychilum), or cyanidin and delphinidin. Flavonols present (Globba, Brachychilum), or absent (4 genera); kaempferol (in Globba), or myricetin (sic — in Brachychilum). Ellagic acid absent. Saponins/sapogenins present (Alpinia), or absent. C3. C3 physiology recorded directly in Curcuma, Elettaria, Zingiber. Anatomy non-C4 type (Curcuma, Elettaria, Zingiber).

Geography, cytology. Tropical. Pantropical, but chiefly Indomalayan. X = (9-)12(-26).

Taxonomy. Subclass Monocotyledonae. Superorder Zingiberiflorae; Zingiberales (cf. Costaceae). APG (1998) Monocot; Commelinoid group; Zingiberales. Species about 700. Genera about 45; Afromum, Alpinia, Amomum, Aulotandra, Boesenbergia, Burbigdea, Camptandra, Caulokaempferia, Cautleya, Curcuma, Curcumorpha, Cyphostigma, Elettaria, Elettariopsis, Etlingera, Gagnepainia, Geocharis, Globba, Haniffia, Haplochorema, Hedychium, Hemiorchis, Hitchenia, Hornstedtia, Kaempferia, Leptosolena, Mantisia, Nanochilus, Paracautleya, Parakaempferia, Plagiostachys, Pleuranthodium, Pommereschea, Renealmia, Rhynchanthus, Riedelia, Roscoea, Scaphochlamys, Siliquamomum, Siphonochilus, Stadiochilus, Stahlianthus, Vanoverberghia, Zingiber.

Economic uses, etc. The sources of ginger root, numerous fragrant oils for perfumery, cardamom seed, and horticultural ornamentals.

Quotations
(For a feast, I must have) . . . a race or two of ginger (‘The Winter’s Tale’, iv., 2 - race (racine) = root)

Cite this publication as: Watson, L., and Dallwitz, M. J. (1992 onwards). ‘The Families of Flowering Plants: Descriptions, Illustrations, Identification, and Information Retrieval.’ Version: 28th May 1999. http://biodiversity.uno.edu/delta/. Dallwitz (1980), Dallwitz, Paine and Zurcher (1993 onwards, 1995 onwards, 1998), and Watson and Dallwitz (1991) should also be cited (see References).