REVISION OF I IE BRITISI SPECIES OF SAGINA - BSBI Archive

More documents

Recommendations

Info

WILLIAMS' <strong>SAGINA</strong>. 195 Annua, flavicanti-viridis, inferne glabra, superne glandulosopuberula. Radix minus ramellata. Cauliculi multi tenues e radicis j 00110 egredientes, a basi ramosi adsoendentes, laterales atque centralis floriferi. Folia 2!-4 mm., omnia velsaltem superiora inter. nodio duplo b.reviora, basi non ciliata, supr;a plana, subtus leviter convexa, inferiora mox marcescentia. Anthemia laxa, pseudoscorpiodea. Pedicelli capillares, terminales et axillares, floriferi erecti, deflorati subarcuati, fructiferi internodio proximo longiores. Flores 2 mm. diam. Sepal a ovato-oblonga obtusa cucullata, exteriora inflexo-mucronulata, interiora mutica, fructifera capsulre stricte adpressa. Capsula matura erecta, calycem subsrequans.. Semina rugulosa, dorsa late canaliculata. Stat. Dry sandy fieJds, heaths, commons, roadsides, dry banks and sand-dunes, from Jersey northward to Aberdeenshire (A. Bennett, Top. Bot. cd. 2, suppl. p. 19). Benekin, in Flora, 1845, p. 721, maintained that the restricted S. ape tala and S. ciliata were mere habitat states. His views were combated Babington, in Bot. Gazette, 1849, p. 174, and supported by Henfrey (ibid. 1850, p. 182). All these allied species have both glandular and non-glandular forms, which are mere states due to environment, and not actual varieties. S,. REUTER 1 Boiss. Diagn. Plant. novo or. Ser. iii. fasc. I, p. 82 (1853). Annua, pygmrea, glabra vel parce glanduloso-puberula. Caules 2t-s ctim., erecto-patentes, fere a basi dich,otoma ramosi, internodiis brevibus. Folia inferiora 4-6 mm., internodia superantia, superiora vix 2 mm. Pedunculi breves setacei, plerumque dense glandulosi, fructiferi erecti vel inclinati, calyce multum longiores. Flores apetali. Sepala 2 mm., ovato-oblonga glabra mutica, fructifera adpressa. Capsula calycem excedens, valvis emarginatotruncatis. " . This is an example of a plant whose geographical status has been reversed. First noticed by Reuter in the environs of Madrid in 1841, it has not been noticed elsewhere in Spain except in a convent garden near Saragossa. The plant has evidently always been overlooked in Britain and passed over as small examples of .~ abetnla' It ~n111rl nnt h~vp hppn nthpriUJ~p th~n ~ ~tr~v "~~I1~1
196 SUPPLEMEN near Madrid, probably imported with cement or gravel, especially as it has not been noted in other tocalities in Spain. In Britain the plant was first recorded on walls near a rai~way station in Worcestershire (see R.E.C. 358, 1892), and has since been noticed in other counties, under circumstances whicl1 indicate that it has been passed over as S. apetala, and is not a recent introduction. Since then it has been noticed in several other counties, as far apart as Hertfordshire, Pembrokeshire, and Angus, and is apparently widely distributed. Mr Druce has'recently sent me specimens from llfracombe, in Devon (July, 19J7) collected by C. P. Hurst. S. MARITIMA G. Don Hort. Sice. Brit. n. 155 (fasc. vii, 1806) ; et Smith Engl. Bot. t. 2195 {Sept. 1810). Annua, glabra. Callies plures ramosi tenues fragiles patentes srepius purpureo-fuscati, plurimumex axillisfoliorum basalium rosu- Ire prodeuntes, centrali etiatfi floriferQ elongato simul furcato. Folia basalia 6--12 mm., mox emarcida; caulina- internodio breviora. Peduneuli wlitarii, axillares et terminales, sub anthesi adscendentes, fructiferi erecti, internedio proximo multum longiores. Flores 5 rom. diam. Sepala ovata srepius purpureo-tincta auguste scarioso-marginata, apice incurva, fructifera patentia. Petala nulla, vel rudimentaria, vel raro lanceolata calycem requantia. Andrrecium isomerum. Ovarium subsessile. Capsula sessilis erecta, calycem subrequens. Semina flavido~brunnea, irregulariter ruguloso-granulata, dorso profunde lateque canaliculata. Stat. On the shores of the sea and tidal rivers, and in places liable to be occasionally overflowed. A. genuina Syme Engl. Bot. ii. p. 117 (1864). Callies tenues adscendentes ramosi, internodius elongatis. Folia incrassata. Capsula calycem requans vel sublongior. Syn.-S. maritima Jordan, Obs. PI. Nouv. crit. Fragm. iii. p. 48, t. 3, f. A (1846). B. debilis Bab. Man. Brit. Bot. ed. 5, p. 50 (1862). CallIes t~nuiores decumbentes ramosi,' internodiis elongatis. Folia incrassata. Capsula calyce subbrevior. Syn.-S. debilis Jordan I.c. p. 49, t. 3, f. B (1846). f. Prostrata Townsend. Fl. Hampshire.
Page 1 and 2: REVISION OF I IE BRITISI SPECIES OF
Page 3 and 4: ~2 SUPPLEMENT Procumbente nobis in
Page 5: 194 SUPPLEMENT lusus' one flower in
Page 9 and 10: IaR SUPPLEMENT bay, and Headon bay,
Page 11 and 12: 200 SlIPPLEME 10.'50 metres. In Her
Page 13 and 14: 202 SUPPLBMEN'f found also on Am Bi
Page 15: 2°4 SUPPLEMENT. and from Norfolk w

REVISION OF I IE BRITISI SPECIES OF SAGINA - BSBI Archive

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?