This blog tries to get a bit deeper into the nature of the trees around me, mainly in the Low Weald of Kent.

Saturday 19 May 2018

Broad-leaved Lime at Dene Park


I finally had a good look at this small tree on the Knight's Park path in Dene Park, which I have wondered about for many years. It had leaves up to 150 mm long, quite floppy, and nearly as wide as long. A close examination showed a downy upper surface, hairs on the lower surface, with very obvious whitish hair tufts on the less developed leaves. It does look quite a lot like Broad-leaved Lime, Tilia platyphyllos Scopoli.


Looking very closely at the teeth, most are drawn out into a point, a feature of this species I think.


This is the underside of the leaves.


and here is a view of the tufts and hairs on the underside of the leaves.


I was very pleased to find all these features. Now all I have to do is go back in about 8 months to see the winter buds

Thursday 17 May 2018

Oliver's Lime at Riverhill Himalayan Gardens


The two specimen of the Chinese White Limes or Oliver's Limes, Tilia oliveri SzyszyƂowicz, on the east end of the front terrace are looking a bit tatty really, although on the plus side, the Mistletoe plants do love them - perhaps a Mistle-Thrush or two might be involved.

From above, the sub-cordate leaves looked a rather acidic lemony yellow rather than a dark green, while from below a very uniform whitish or light grey colour is produced presumably by the tomentum (stellate-downy). The base of the leaves is quite unequal, looking as though the leaf is set upon the petiole at an angle. Things I did notice were the (glabrous) smooth glossiness of the young shoots, and the quite long petioles. I didn't notice the colour of the bark.

The plants originate from moist forest in NW. Hupeh, in Central China, ranging from 1,000 to 2,000 metres altitude.

Hilliers describe it as: "A Medium Tree. This is an elegant domed -shaped tree, leaves dark green above and silver-white beneath. Very pretty in wind. It has silver-grey bark which is clear and smooth. This tree is clear of aphids.". There is also an excellent article in "Trees and Shrubs Online", describing its introduction.

From the Chinese eFlora. Trees 6-26 m tall. Bark dark gray, smooth with shallow furrows and rounded ridges; branchlets glabrous; winter buds big, glabrous or hairy. Petiole 1.5-5 cm, glabrous or rarely pilose; leaf blade broadly elliptic, ovate-orbicular, or triangular-ovate, 6-14 × 4.5-10 cm, abaxially densely gray-white stellate tomentose, adaxially glabrous, lateral veins 5-6 pairs, base shallowly cordate to obliquely truncate, margin serrate to serrulate, teeth often awned, apex shortly acuminate. Cymes 7-20-flowered, as long as or shorter than bracts. Bracts band-shaped, sometimes broader distally, 5-8 × 1-2.5 cm, adnate to peduncle for 2/5 of length, sessile. Sepals triangular-ovate, 5-6 mm, abaxially densely stellate puberulent, adaxially densely tomentose. Petals 5, 6-7 mm, glabrous. Stamens 45, in 5 fascicles, glabrous; staminodes smaller than petals, glabrous, stalked. Ovary densely stellate tomentose; style glabrous. Fruit obovoid, globose, or ellipsoid, 7-10 mm, gray-white tomentose and verrucose; exocarp woody, hard, indehiscent. Fl. Jun-Aug, fr. Aug-Sep. 2n = 82*.

It is listed as fairly narcotic to bees.