00382nas a2200121 4500008004100000245005700041210005700098300001400155490000700169100002200176700001500198856004700213 2003 eng d00aFirst fossil record of transfer cells in angiosperms0 aFirst fossil record of transfer cells in angiosperms a957–9590 v901 aGottschling, Marc1 aHilger, HH uhttps://boraginales.myspecies.info/node/7700442nas a2200133 4500008004100000245008800041210006900129300001400198490000800212100001300220700001300233700001500246856004700261 2003 eng d00aLeaf anatomy and foliar trichomes in Heliotropiaceae and their systematic relevance0 aLeaf anatomy and foliar trichomes in Heliotropiaceae and their s a468–4850 v1981 aDiane, N1 aJacob, C1 aHilger, HH uhttps://boraginales.myspecies.info/node/8101757nas a2200145 4500008004100000245013600041210007000177300001200247490000800259520125000267100001701517700001501534700001501549856004701564 2003 eng d00aVerbreitung und Differenzierung der mitteleuropäischen Unterarten von Buglossoides arvensis (L.) I.M.Johnst. (Boraginaceae)0 aVerbreitung und Differenzierung der mitteleuropäischen Unterarte a58–700 v1143 a

The Corn Gromwell (Buglossoides arvensis) has two Central European subspecies, B. arvensis subsp. arvensis and B. arvensis subsp. sibthorpiana. The ITS1-region of 55 European samples was amplified and sequenced and it yielded a 238 bp fragment, which consistently differed by 15 substitutions between the two subspecies. The results suggest that the two subspecies indeed represent two independent taxa and have been confused mainly because of their morphological plasticity. Because of this confusion, distribution and abundance were poorly understood. The subspecies as here redefined can be distinguished as follows: B. arvensis subsp. arvensis has oblong cotyledons, a horizontal gynobase, an unthickened pedicel in fruit, and a cream-coloured corolla. B. arvensis subsp. sibthorpiana has circular cotyledons, an oblique gynobase, an obliquely thickened pedicel in fruit, and a light blue to (more rarely) cream-coloured corolla. The two taxa show some degree of ecological differentiation: B. arvensis subsp. arvensis is only found as a weed in winter cereals, whereas B. arvensis subsp. sibthorpiana is occasionally found as a weed in fields, but also on dry grasslands, sandy waste sites and road sides, and in dry, open forests.

1 aClermont, A.1 aZippel, E.1 aHilger, HH uhttps://boraginales.myspecies.info/node/8300834nas a2200133 4500008004100000245006600041210006600107300001400173490000700187520043100194100001300625700001500638856004700653 2003 eng d00aBoraginaceae cymes are exclusively scorpioid and not helicoid0 aBoraginaceae cymes are exclusively scorpioid and not helicoid a719–7240 v523 a

Boraginaceae have erroneously been associated with helicoid cymes, when upon closer inspection they exclusively possess scorpioid cymes (cincinni). A discussion of the inflorescence structure in Boraginaceae is presented with the help of an over-view of monochasial branching systems and a three-dimensional representation thereof Reasons for the incorrect description of Boraginaceae inflorescences are also provided

1 aBuys, M.1 aHilger, HH uhttps://boraginales.myspecies.info/node/8402073nas a2200133 4500008004100000245009600041210006900137300001200206490000800218520163800226100001501864700001301879856004701892 2003 eng d00aA systematic analysis of Heliotropiaceae (Boraginales) based on trnL and ITS1 sequence data0 asystematic analysis of Heliotropiaceae Boraginales based on trnL a19–510 v1253 a

The infrafamilial relationships of Heliotropiaceae (Boraginaceae subfam. Heliotropioideae according to traditional systems) are reevaluated using molecular data of nuclear ITS1 (86 species) and plastidal trn LUAA intron (66 species) sequences. The results obtained from our investigations show that traditional generic limits warrant adjustment. Heliotropiaceae fall into two large clades. The first clade includes, in basal position, the genus Ixorhea . The genus Myriopus (formerly Tournefortia sect. Cyphocyema) is sister to Euploca (formerly Hilgeria, Schleidenia, Heliotropium sect. Orthostachys). The remaining sections of Heliotropium, Tournefortia sect. Tournefortia and the three small genera Argusia, Ceballosia, and Nogalia, segregated from Heliotropium, constitute the second large clade. Argusia, Ceballosia, and Nogalia cluster within clades of Heliotropium and therefore are reincluded in this genus. Within Heliotropium, the species of former Tournefortia sect. Tournefortia represent a lineage of tropical New World Heliotropium species, growing in humid environments, whereas all other Heliotropium species are found in semi-arid habitats. Before new combinations in the genus Heliotropium are made for "Tournefortia", the exact relationship within New World Heliotropium needs to be resolved, and a revision of "Tournefortia" is inevitable. We advocate maintaining the genus Tournefortia, which is easily defined, and we conclude that under this definition the genus Heliotropium is paraphyletic. Five genera are thus accepted; 22 new combinations within Heliotropiaceae are presented.

1 aHilger, HH1 aDiane, N uhttps://boraginales.myspecies.info/node/60