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[ 210 ]

T H E M E R T O N C A T A L O G U E

A LIST OF CHROMOSOME NUMBERS OF

BRITISH PLANTS

SUPPLEMENT No. i

B Y J. P. RUTLAND

John Innes Horticultural Institution, Merton, London

(With 19 figures in the text)

RANUNCXn.,ACEAE

L. (Fig. I)

CRUCIFERAE9. N A S T U R T I U M

DC 32 Scheerer 1939

CISTACEAE. H E L I A N T H E MU M

Mill. 2ot Bowden 1940Mill. 20 „

Baumg. 22 ,,

PORTULACACEAE5 . C L A Y T O N I A

Donn 36 Rutland num.nov.

TAMARICACEAE77 . TAMARIX

L. 24 Bowden 1924

88. OXALISL.

92. R H A M N U SFrangtda L.

GERANIACEAE

24 Rutland num.nov.

RHAMNACEAE

20 Rutland num.nov.

LEGUMINOSAE99. T R I G p N E L L Aornithopodioides D C . 18 Rutland num.nov.100. MEDICAGOfcdcata L. 16, 32! Ledtngham 1940

1 0 2 . T R I F O L I U Mresupinatum L.agrarium L.dubium Sibth.104. L O T U Sangustissimus L.tenuis Waldst. & Kit.

Uspidut Desf.

I4§1 42 8

12II1 2

2 4

W i p f 1939

R u t l a n d n u m . n o v .D a w s o n 1941 (N at i

mater ial)R u t l a n d n u m . n o v .

CRASSULACEAE134 . SEDUMrosea Scop.rosea var. elongatum

2 2

2 2L e v a n 1933T a y o h u k o & Matsuu

1 3 5 . S E M P E R V I V U Mtectorum L. 72

19 39

R u t l a n d n u m . n o v .

HALORAGACEAE138. M Y R I O P H Y L L U Matternifotium D C . 14 Scheerer 1939

142 . EPILOBIUMpalustre L.

ONAGRACEAE36 Rutland num.nov . -

UMBELLIFERAE153. S MY R N I U MOtusatrum L.156. APIUMinundatum Reichb. f. 22nodiflorum Reichb. f. 22

• 1 5 8 A . P E T R O S E L I N U Mcrispum Nym. 22172. O E N A N T H Esitaifotia Bieb. 22

22 Rutland num.nov. (Fig

' » ' » Scheerer 1939

Rutland num.nov. (Fig

Rutland num.nov.

Rutland num.nov.

CAPRIFOLIACEAE

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The Merton Catalogue 2 1

COMPOSITAE204. S O L I D A G OVirgaurea L. 1820 7 . E RIGE RONacris L. 18211. G N A P H A L I U Msupinum L. 28212. I N U L AHelenium L . 2 0 *

crithmoides L. 18217 . DIOT ISmaritima Hook. 18220. M A T R I C A R I Asuaveolens Buch. 18222. T A N A C E T U Mvulgare L. 18

225 . P E T A S I T E Salbus Gaertn. 6 0227. SENECIOintegrifotius Clairv. 482 4 7 . S O N C H U Soleraceus L. em. Hill 3 2 tasper Hill 18

Scheerer 1939

Rutland num.nov.

Rutland num .nov. (Fi f . 6 )

Rutland unpub. (Fig. 8)Rutland num.nov. (Fig. 7)

Rutland num.n ov. (Fig. 5)

Rutland num.n ov. (Fig. 4)

Rosenberg IQ05Rutland unpub.

Scheerer 1939

Rutland num.nov. (Fig. 9)

Rutland unpub.Rutland num.nov.

CAMPANULACEAE254. C A M P A N U L Apatuld L. 20 Rutland num.nov,255. L E G O U S I A

. hybrida (L . ) De l . 20 Rutland num.nov.

VACCINIACEAE256. V A C C I N I U MMyrtiltits L . Rutland num.nov.

262. ERICAmediterranea

L .

- 283. V I N C Amajor L .

ERICACEAE

i

APOCYNACEAE

minor L .[and two colour

varieties]

92S

46§

Pannocchia-Laj 1938Bowden 1940Rutland unpub.Pannocchia-Laj 193SBowden 1940Rutland unpub.

GENTIANACEAE288 . GE NT IANAPneumonantbe 26

290. N Y M P H O I D E SpdUxtum Britton & Rendle 54

Scheerer 1939

Scheerer 1939

SCROPHULARIACEAE314. S C R O P H U L A R I Anodosa L. 363 16 . L IM OSE L L Aaquatica L . 40II319. V E R O N I C Ahumifusa Dickson 14icutalata L. 18

Scheerer 1939

Blackburn & Vachell 1939

Rutland num.nov.Scheerer 1939

LABIATEAE332. O R I G A N U M

vutgare L . 30 Rutland num.nov.(Fig. 14)

334. C L I N O P O D I U Mvulgare L . 2 0338. NEPETACataria L . 3 6 ?hederacea Trev. 18hederacea Trev. 36

342. M A R R U B I U Mvulgare L. 34

343. S T A C H Y Slylvatica L . c. 6 6345. L E O N U R U SCardiaca L. 18

3 4 7 . B AL L OT A

nigra L. 22

3 4 8 . T E U C R I U MScorodonia L. 34349. A J U G AChamaepitys Schreb. 28

S c h e e r e r 1 9 3 9

S u g i u r a 1 9 4 0

R u t l a n d n u m . n o v .( F i g . 1 3)

R u t l a n d n u i n . n o v .

S c h e e r e r 1 9 3 9

R u t l a n d n u m . n o v .

(Fig. 10)

Rutland num.nov.(Fig. 11)

Rutland num.nov.

Rutland num.nov.

(Fig. 12)

ILLECEBRACEAE353. H E R N I A R I Aglabra L . 18 Scheerer 1939

3 66 . RUM E XAcetosella L. var.

tenuifolia

POLYGONACEAE

2 8** Ixive 1940

EUPHORBIACEAE373. E U P H O R B I ACyparissias L. 20 Rutland num.nov.exigua L. 24 „Lathyris L . 2 0 Bowden 1940

389. P O P U L U Snigra L. var. italica

SALICACEAE

38 Suto, cit . Matsuura 1

MONOCOTYLEDONS

ORCHIDACEAE399. N E O T T I ANidus-avis Rich. 36tt404. CEPHALANTHERASrandiflora Gray405. E P I P A C T I Slatifotia All .4 0 6 . ANACAM PT ISpyramidalis

Rich.409. A C E R A Santhropophora ' B T .

410. O P H R Y Smusdfera Huds.apifera Huds.

36

38

36

336

Barber 1941

Barber 1941

Barber 1941

Barber 1941

Barber 1941

Barber 1941Barber 1941

445. P A R I Squadrijotia L .

LILIACEAE

2o§§ Darlington and La C

NAIADACEAE462. POTAMOGETONcrispus L . c. 52

pectinatus L . c. 78perfoliatus L . c. 52IIII

Scheerer 193O

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2 1 2

Fig. I. R. Ficaria, x = 6. (See p. 210.)

2 3Figs. 2-3. Umbelliferae, a:= 11. (See p. 210.)

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The M erton Catalogue 2 1

10

11

12

Figs. 1014. Labiateae, x=%, 7, 9, i i . (See p. 211.)14

.-fh

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214 J. p. RUTLAND

CYPERACEAEERIOPHORUM

L. 58CAREXL. 60

L. var. disjuncta 54Schrank. 60

Willd. 64

H^ansson 1928

Wahl 1940

Heilbom 1939

POLYPOGONSm.

GRAMINEAE

28

GASTRipiUMSchinz &

Thell.

Rutland num.nov,(Fig. 18)

Rutland num.nov.(Fig. is)

500. AVENApubescens Huds. 14*501. ARRHENATHERUMtuberosum Schultz 28

514A. P U C C I N E L L I Afasdcutata Bickn.

rupestris Fern. & Weath.

28

42

515. FESTtJCA{Vidpia) ambigua Le Gall. 28516. BROMUSsecatinus L. I4tcommutatus Schrad. 56

Carson & Fyfe unpub.

Rutland num.nov.(Fig. 19)

Rutland num.nov.(Fig 17)

Rutland num.nov.(Fig. 16)

Maude lg40

Nielsen 1939

* Kattermann (1934) givest A tetraploid, 8

, B"«.> ^ " - - 6 (see Tischler 1936). , .. ,28 , previously reported by Avdulov (1931) and Nakajima (1931).

Notes, (i) My new counts here recorded are all from British material.

(2) All figures are magnified 3000 diameters from Flemminggentian violet

preparations.

ACKNOWLEDGEMENTS

I am indebted to Mr E. M. Marsden Jones, Mr H. N. Barber and Miss B. Schafer

for many plants, and to Dr W. B. Turrill for assistance with the nomenclature.

REFERENCES

BLACKBURN, K. B. & VACHELL, E. (1939). The Limosella plants of Glamorgan. Parti. The historyof their discovery. Part II. Chromosomes and species. J. Bot., Lond., 77, 65.BowDEN, W. M. (1940). Diploidy, polyploidy and winter hardiness relationships in the flowering

plants. Amer. J. Bot. VJ, 357.BusHNELL, E. P. (1936). Cytology of certain Labiatae. Bot. Gaz. 98, 356.DAWSON, C. D . R. (1941). Tetrasomic inheritance in Lotus cornicutatus L. .5"- Genet, 42, 49.LEDINGHAM, G. F . (1940). Cytological and developmental studies of hybrids between Medicago

sativa and a diploid form oi M.fatcata. Genetics, 25, i.LEV AN, A. (1933). Uber das Geschlechtschromosom von Sedum Rhodiola DC. Bot. Notiser, p. 195.L6vE, A. (1940). Polyploidy in Rumex Acetosetta L. Nature, Lond., 145, 351.MATSUURA, H . (1939). Problems of the secondary association of chromosomes (Engl. summary).

Botany and Zoology, 7, 1665.

MAUDE, P. F. (1939). The Merton Catalogue. New Phytol. 38, i.(1940)- Chromosorne numbers in some British plants. New Phytot. 39, 17.NIELSEN, E. L. (1939). Grass studies. III. Additional somatic chromosome complements. Amer.J.

Bot. 26, 366.PANNOCHIA-LAJ, F . (1938). Embriologia e caryologia del genere Vinca (Apocynaceae). N. Giarn.

bot. itat. 45, 157.RoHWEDER, H. (1939). Weitere Beitrage zur Systematik und Phylogenie der Caryophyllaceen mit

besonderer Berucksichtigung der karyologischen Verhaltnisse. Beih. bot. Zbt. 59 B, i.ScHEERER, H. (1939). Chromosomenzahlen aus der Schleswig-Holsteinischen Flora. I. Planta, 29,

636.SuGiURA, T. (1940). Chromosome numbers and meiosis in the genus Qarex. Amer. J. Bot. 27, 4S8-WiPF, L. (1939). Chromosome numbers in root nodules and root tips of certain Leguminosae. Bot.

Gaz. IOI, 51.

The references to earlier work given in the footnotes will be found in the Merton Catalogue.

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