Page:Illustrations of Indian Botany, Vol. 2.djvu/197

 ILLUSTRATIONS OF INDIAN BOTANY-

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Div. III. Hedichrtsej:. Capitula not glomerulate, receptacle epaleaceous.

77. Helichrtsum (D. C. 6-169, R. W. Icon. 1113). Capitula sometimes homogamous, florets all hermaphro- dite, 5-toothed, sometimes heterogamous ; marginal florets often very few, 1 series, female. Achaenia beakless, sessile, with a terminal areola. Pappus 1 series, setae roughish not plumose. — Herbs or shrubs with alternate leaves. Involucre imbricated, scales scariose, interior ones connivent or radiant. Recepta- cle flat, epaleaceous, naked, areolate, or fimbriliferous. Involucre white, purple, or yellow. Corolla yellow or purple. Neilgherries, Ceylon, Cochin China.

78. Gnaphalium (Don. D. C. 6-221, R. W. Icon. 1114-15). Capitula heterogamous; florets all tubular, marginal ones many series, female ; disk ones her- maphrodite. Achaenia somewhat terete, sub-pappillose. Pappus 1 series, scarcely rough. — Herbaceous or suffru- ticose, generally woolly or tomentose plants. Capitula often disposed in glomerules, terminal or axillary, fasci- cled, corymbose, or spicate. Involucra white, red, pur- ple or yellow. Widely diffused, alpine plants, from the Himalayas to Ceylon.

79. Filago (Tourn. D. C. 6-247). Capitula heteroga- mous : marginal florets numerous, on an elongated, fili- form receptacle, the apex only dilated and bearing a few male or hermaphrodite flowers. Achaenia terete, papillose. Pappus of the central ones setose, filiform, of the margin wanting or dissimilar. — Tomentose herbs. Capitula axillary or aggregated on the ends of the branches, small. [There is a discrepancy between this generic character and that of F. prostrata, the central florets of that species being without pappus, the mar- ginal ones having it: neither do I find paleae on the receptacle of that species.] Like the preceding, but also extends to the plains.

Div. V. Antennarie.e. Capitula dioicous, not glomer- ate. Style of the male florets simple, receptacle epaleaceous or the margin only paleaceous.

80. Antennaria (Brown D. C. 6-269). Capitula dioicous or sub-dioicous, with an alveolate, convex re- ceptacle. Female florets filiform, 5-toothed; male, anthers half exserted. Achaenia terete. Pappus 1 series, setae of the female flowers filiform, of the male clavate. — Herbaceous or suffruticose, Capitula corym- bose. Involucre imbricated, variously coloured at the apex or scariose, never yellow. Flowers yellow. Himalayas.

81. Anaphalis (D. C. 6-271, R. W. Icon. 478-1116, 17, 18, 19). Capitula heterogamous, discoid ; marginal florets few or many series, female; disk ones her- maphrodite, sterile, 5-toothed. Styles of the marginal florets long, exserted, bifid, of the disk undivided, ob- tuse. Achaenia glabrous, obcompressed, sessile, eros- trate. Pappus 1 series, uniform, bristles rough not clavate. — Herbaceous or suffruticose, woolly or tomen- tose plants, stems sometimes 1-cephalous, oftener poly- cephalous, corymbose. Scales of the involucre niveo- scariose, lanceolate, several series, the middle ones with a brownish claw. Receptacle convex, alveolate. Al- pine plants, Himalayas, Neilgherries, Khassia Moun- tains, Ceylon.

82. Leontopodium (Brown D. C. 6-275). Capitula heterogamous; ray florets female, 1 or several series, 3-4-denticulate ; disk ones bisexual-sterile, infundibuli- form, 5-toothed, with the style clavate at the apex. Achasnia cylindrico-comprassed. Pappus of the female barbellate, of the sterile flowers usually clavate. — Perennial mountain herbs, woolly-tomentose ; leaves oblong or the lower one obovate. Capitula terminal, umbellato-corymbose, middle capitulum of the central corymb sessile ; the female flowers 1 series, ebracteolate, earlier; the lateral ones short pedicelled, females many series, furnished with a woolly, foliaceous bractea, there- fore glomerulate, bound by radiating floral leaves. Scales of the involucre adpressed, woolly. Receptacle convex, foveolate [apparently scarcely distinct from the preceding]. Himalayas.

Div. VII. RelhaniejE. Capitula many-flowered rare- ly few-floiuered, homogamous or radiate. Receptacle epal- eaceous. Pappus none or crown-like.

83. Carpesium (Lin. D. C. 6-281, R. W. Icon. 1120). Capitula heterogamous, discoid ; marginal florets female, several series, disk, hermaphrodite. Anthers caudate. Branches of the style terete, obtuse, sub-glabrous. Achaenia oblong, compressed, rostrate ; rostrum beset with viscid glands. Pappus none. — Herbaceous, erect plants with alternate leaves. Capitula solitary on the ends of the branches. Involucre many series, imbri- cate, exterior ones sometimes foliaceous. Flowers yellow. Himalayas, Neilgherries.

Sub-tribe. Senecione.e. Capitula homogamous or heterogamous, discoid or radiate. Anthers ecaudate. Achania crowned with setaceous or pilose pappus, rare- ly wanting, the marginal ones sometimes bald. Leaves alternate.

Div. II. Erechthiteje. Receptacle epaleaceous. Cap- itula discoid, heterogamous; florets of the ray tubular, female.

84. Cremocephalum (Cass. D. C. 6-297). Capitula heterogamous, marginal florets few, filiform, female. Branches of the style crowned with a short, hispid cone. Achaenia terete, 10-ribbed. Pappus pilose, soft, several series. — Herbs, branches long, naked 1-cephalous. In- volucre many-leaved, not imbricated, calyculate. Re- ceptacle fimbriliferous, afterwards becoming, with the base of the involucre, thickened; flowers purple. In- dia — where ? Mauritius.

Div. III. Eusenecione^:. Receptacle epaleaceous. Capitula either homogamous, discoid or radiate. Cotyle- dons flat.

85. Gtncra (Cass. D. C. 6-298, R. W. Icon. 1121- 22). Capitula discoid, homogamous. Base of the tube of the corolla corneus. Branches of the style produced into a long, hispid appendage, usually exserted. Achae- nia terete, striated, beakless. Pappus many series, filiform, scarcely barbellate. — Herbaceous or shrubby plants; with corymbose capitula. Involucre cylindrical, 1 series, calyculate at the base with subulate bracts. Receptacle flat, alveolate. Flowers white. Alpine plants, Himalayas, Khassia Mountains, Neilgherries, Ceylon.

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