SYNGENESIA. 



(39) 



SYNGENESIA. 



BUPHTHALMUM, Ox-eye Stigma of the hermaphrodite 

 fluscules undivided; the seeds have the sides, especially in 

 the ray, edged ; down an obscure edge ; receptacle chaffy. 



ECLIPTA Receptacle chaffy; seed-down none; florets of 

 the disk four-cleft. 



BELLIUM, Bastard Daisy Calix with equal leaflets; seeds 

 conic, with a chaffy eight-leaved crown, and awned down ; 

 receptacle naked. 



AMELLUS Calix imbricate; corollets of the ray undivided; 

 down simple ; receptacle chaffy. 



MITTISIA Calix cylind tic, imbricate; corollets of the ray oval- 



eblong,of the disk tririd; down feathered; receptacle naked. 



# ******** 



ACMELLA Calix simple; leaflets few; receptacle oblong, 

 paleaceous ; seeds four-sided, truncate at the summit, 

 naked. 



ACTIN-ELLA Calix many-leaved, subequal, flat; rays, eight 

 to twenty, three-toothed, wider towards the extremity ; 

 receptacle naked, hemispherical; pappus paleaceous, five 

 to eight leaved, leaflets awned. 



BOEBEKA Calix double, exterior many-leaved, interior 

 eight-leaved; receptacle naked ; pappus pilose. 



BOLTOXIA Calix, common subimbricate, with linear scales ; 

 corolla radiate; germen compressed, vertical ; down ob- 

 scurely toothed, two-horned ; receptacle honey-combed. 



BRACHYHIS Calix cylindric-ovate, closely imbricate, scales 

 agglutinated ; radial florets about five, discal florets also 

 about five; receptacle naked; pappus short and pale- 

 aceous, leaflets five to eight, persisted!. 



DAHLIA Calix double, the outer of many leaves; corolla 

 radiant, its rays equal in number to the segments of the 

 calix, ovate, three-toothed ; receptacle chaffy ; stigmas 

 downy ; seed-down none. 



DONIA Calix hemispherical, imbricated, squarrose and 

 glutinous ; radial florets numerous, (thirty to thirty-five, 

 yellow) ; receptacle naked, scrobiculate ; pappus seta- 

 ceous, deciduous. 



ELICHUYSUM Receptacle naked; down capillary or 

 feathery; calix imbricated, its inner scales forming a 

 coloured spreading radius. 



HELIOPSIS Calix imbricated; scales subovate, lined ; rays 

 large and linear; receptacle paleaceous, conic; palsea 

 lanceolate; seeds four-sided ; pappus none. 



PHXTHUSA Calix subcylindrical, many-leaved, hermaph- 

 rodite, several in the disk; females, one or two in the ray; 

 receptacle chaffy; seeds hispid, without any proper down. 



PYRETIIHUM, Feverfew Calix hemispherical, imbricate; 

 scales partly acute, with scariose margins; receptacle 

 naked; pappus marginal. Smith. 



RELIIANIA Calix imbricate, scariose; corollets of the ray 

 very many; seed-down membranaceous, cylindrical, short; 

 receptacle naked. 



STARKEA Calix imbricated; receptacle hirsute; pappus 

 simple, sessile, scabrous. 



TETRAGONOTHECA Calix one-leafed, four-sided, four- 

 parted, very broad; receptacle paleaceous; pappus none. 



TKICHOPIIYLLUM Calix oblong-cylindric, many-leaved, 

 equal; radial florets oblong; receptacle naked; pappus 

 paleaceous, minute, five to eight leafed ; leaflets obtuse, 

 awnless. 



3. POLYGAMIA FRUSTRANEA. 



(In this Order, the florets of the centre have both stamens and 

 pistils ; those of the ray neither, or only abortive pistils.) 



HELIANTHUS, Sun-flower Calix imbricate, somewhat squar- 

 rose ; down two-leaved ; receptacle -chatty, flat. 



RUDBECKIA Calix with a double row of scales; seed 

 crowned with a four-toothed rim ; receptacle chaffy, 

 conical. 



COREOPSIS, Tick-seed Sun-flower Calix erect, many-leaved; 

 surrounded at the base with spreading rays ; down two- 

 horned; receptacle chaffy. 



GORTERIA Calix imbricate with spiny scales; corolla of 

 the ray ligulate; down woolly; receptacle naked. 



OSMITES Calix imbricate, scariose; corolla of the ray ligu- 

 late ; down obsolete ; receptacle chaffy. 



ZOEGEA Receptacle bristly ; seed-down of simple bristles ; 

 florets of the ray ligulate; calix imbricated. 



CENTAUREA, Centaury, Blue-bottle, S?c. Receptacle bristly; 

 down simple; corolla of the ray funnel-form, longer, irre- 

 gular. 



SCLEROCARPUS Calix six-leaved, three exterior larger, like 

 the leaves, three internally smaller, like the scales, alter- 

 nate ; pappus none ; receptacle chaffy. 



DIDELTA Calix expanding, outer leafy; receptacle honey- 

 combed, dividing into many parts, which retain the seed; 

 down chaffy, many-leaved. 



LEPTOPODA Calix simple, many-parted ; rays twenty or 

 more, semitrifid, broader at the summit; receptacle naked, 

 hemispherical ; pappus paleaceous, eight to ten leaved, 

 awnless. 



GALARDIA Calix many-leaved, flat, subequal ; rays semi- 

 trifid and broader towards the summit; receptacle setose, 

 hemispherical ; pappus paleaceous, leaflets eight to ten, 

 awned. 



BALDUINA Calix imbricated, foliaceous, and squarrose; 

 rays subtrifid ; receptacle hemispherical, corneous, cellu- 

 lar; seeds immersed; pappus paleaceous, awnless, erect, 

 about ten-leaved. 



ACTINOMERIS Calix simple, many-leaved, foliaceous, sub- 

 equal ; rays remote, elongated, four to eight; receptacle 

 small and paleaceous, the leaflets embracing the margin 

 of the seed ; seed compressed and marginated, with the 

 summit persistently two-awned. 



PALLASIA Receptacle chaffy ; down none; seed vertical, 

 flat; margin ciliated; calix imbricate. 



4. POLYGAMIA NECESSARIA. 



(In this Order, the florets of the centre have stamens and 

 pistils, without seeds; those of the circumference pistils 

 only, with seeds.) 



MILLERIA Calix three- valved ; ray of the corolla halved; 

 down none; receptacle naked. 



SILFIIIUM Calix squarrose; seed-down margined, two- 

 horned; receptacle chaffy ; chaffs linear. 



CIIRYSOOONUM Calix five-leaved ; seed involved in a four- 

 leaved calicle ; pappus one-leafed, three-toothed ; recep- 

 tacle chaffy. 



MELAMPODIUM Calix five-leaved ; receptacle chaffy, coni- 

 cal ; down one-leafed, involuted, converging. 



CALENDULA, Marigold Receptacle naked; down none; 

 calix with many divisions ; seeds in the circumference of 

 the disk, membranaceous. 



ARCTOTIS Receptacle villose or chaffy ; down with a five- 

 leaved crown; calix imbricate with scales, scariose at 

 the end. 



OSTEOSPERMUM Calix simple, or in two rows, many- 

 leaved, almost equal ; seeds globular, coloured, bony, 

 (Gaartner says, berried, or nucamentaceous); down none; 

 receptacle naked. 



OTIIONNA, African Ragwort Calix one-leafed, multifid, 

 subcylindrical; down almost none ; receptacle naked. 



