9. Almost Rosids to Rosids Santalales Lots of parasitism Polyacetylenes 1-seeded ovules, pendulous and freecentral placentation Molecules In ours, flowers not prominent Families not on required list “Santalaceae” Hemiparasites Root parasites Viscaceae Epiphytic parasites Haustoria Stems jointed Lvs opp, oft. Coriaceous or succ. Flrs unisex, inconspic, radial T3-4A3 (no fil),G3-4, inf. Viscous berry Passive gametophyte Pantrop + some temperate Loranthaceae Us. Epiphytes Lv opp or almost so Flrs bisex, rad or bilat Ca rimCo(3)5-6(9), distinct or conn, oft. Red or yellow, A=Co, opp, fil adnate Aggr. gametophyte Tropical ROSIDS Weakly supported group Also some lack of clarity of relationships within Lots of representatives in our part of the world Hypanthium features in many families Radial symmetry common Saxifragales Some families chiefly (only?) on molecular data Hypanthium, 2-united carpels, glandular leaf teeth Retained: 5-merous flowers with separate parts Saxifragaceae Two interpretations Shaw – as in text; Welsh – much broader (older) Herbs, often basal leaves, alt. NO STIPULES Flr rad to bilat, HYPANTH, Ca4-5 sometimes connate, Co4-5, oft. Clawed, St 3-10. G2(-5), connate, varying position, axile, oft. nectar disk Fr. Capsule or follicle Crassulaceae Geraniales Five families, 1 in north Utah Morphological features of order Leaf margins with glandular teeth Inflorescence cymose Calyx persistent in fruit A few other characters Anomocytic stomates Vessel elements with simp[le perforations Geraniaceae Remarkable feature is fruit Herbs to subshrubs; stems usually jointed at nodes Hairs glandular, with aromatic oils (I.e., smelly plants) Stipules present, leaves with gland. Teeth K5C5A(5)10,15, filaments often slightly connateG5conn Fruit a schizocarp, persistent style column Persistent style Note the fruits in picture above and on the right Malpighiales This order contains 7.8% of the diversity of angiosperm diversity There does not seem a whole lot tying it together, see: http://www.mobot.org/MOBOT/Research/APweb/welcome.html The Angiosperm Phylogeny Group’s home page Euphorbiaceae