External flavone aglycones in the overground parts of Veronica chamaedrys L. (Scrophulariaceae) have been analysed by isocratic reversed-phase high performance liquid chromatography. Luteolin, apigenin, luteolin-3'-methyl ether and scuterallein-6,4'-dimethyl ether have been identified. The latter compound is a new flavonoid identified in Veronica genus.

A newly recorded family, Phrymaceae, and species, Phryma leptostachya L., from Taiwan are described and illustrated. Phryma leptostachya was found near Chienshih Hsiang, in Hsinchu Hsien. The flowers of Phryma have unusually long hooked tips on the calyx and single-seeded fruit enclosed by the persistent calyx, which accounts for its isolated taxonomic position and recognition as an independent...

Genel olarak "sıracaotu" bilinen Scrophulariaceae familyası, otsu bitkilerden ve bir cinsi ise çalıdan oluşur. Familyanın yaklaşık 62 1830 tanınmış türü vardır. Türkiye’de “sığırkuyruğu” tanınan Verbascum L. (Scrophulariaceae, Lamiales) cinsi, Avrupa, Afrika Asya'daki ılıman bölgelerde geniş dağılım gösteren 360 türden Bu cinsin gen merkezi, 256 tür, 131 hibrit 13 kısmen yapay gruba bölünmüş 6 ...

haplothripsverbasci (osborn) is recorded from iran for the first time. the specimens of this species were collected on flowers of verbascum thapsus (scrophulariaceae) from hamedan province, western iran.

Verbascum delphicum Boiss. & Heldr. subsp. cervi Zografidis (Scrophulariaceae, Scrophularieae) is described as a subspecies new to science and illustrated. It is narrowly distributed in the Greek National Park of Mt Parnitha (Attica, Greece) with a very small population size. The new subspecies is a seldom-collected taxon, previously overlooked and misidentified as consubspecific with the auton...

Plants that experience variation in pollinator visitation rates or fluctuations in weather conditions may be expected to have evolved homeostatic mechanisms that regulate their nectar offerings, thereby providing a more constant reward to the pollinators. A limited degree of such nectar homeostasis is reported here for Penstemon. First, nectar removal stimulates replenishment: when nectar was r...