Are White and Red Trillium a different species?

A question of speciation

Advertisements

Click here for my Online Gallery offering from this group.

Questions about speciation of flora can be complex and are so in the case of trillium. A straightforward answer is “yes,” white and red trillium are different species with distinct characteristics, as can be seen from the first photograph.

The white trillium below are in the species Trillium grandiflorum as evidenced by coloration, the shapes of the flower petals and anthers. For this discussion I will focus on the flower petal shape and coloration. The grandiflorum petals are broad at the base and wavy, compared to the more blade-like red trillium, Trillium erectum, straight-edged petals.

There is the obvious difference of color, but Trillium erectum has a white form, not seen here.

Click any photograph for a larger view.

Then, there is this specimen, below, with a stippling of red on blade-like petals with wavy edges. Here is where the experts differ and, in summary, many believe trillium species are an interrelated complex with the possibility of hybridization, sharing of genetic material between the different species to produce fertile offspring. This specimen may be an example of this hybridization.

Click me for another Trillium posting
Copyright 2019 All Rights Reserved Michael Stephen Wills

Life and Death

Rumination on wild flower blooms

Click here for my Online Gallery offering of trillium.

An access road, now blocked with huge boulders by the State Park, leads to this dam at the head of Fillmore Glen. I stop here for reflection at times and have climbed behind the dam for photographs. It is possible to drive up the south side of the glen on a poorly maintained road and park next to the boulders. In this season (spring) the surrounding forest is carpeted in wildflowers. Hepatica, trillium, dutchman’s breeches. One day, years ago, I pulled in behind a late model convertible with a license plate holder advising the owner was a member of the 10th Mountain division and a World War II veteran.

They were a well dressed and groomed couple. The white haired driver, in his late 80’s at least, patiently waited while she, a frail woman, walked the margins of the forest, enjoying the wildflowers. It was my impression this was a ritual for them, developed over the years. One of the few spring outings left to them.

Wildflower displays such as what I shared last posting develop over hundreds of years. The massed trillium are on land not disturbed for thousands of years, since the last ice age. These same spring wonders were certainly enjoyed by the Iroquois before us.

Click either photograph for a larger view.

On the gorge slope below the parking area, in a hollow on the north side of a large (I recall) oak, one early sunny spring morning I discovered the last resting place of a deer. Only the bones and some fur remained, the visible portion resembles the Capitulum and trochlea of a human arm bone and, indeed, there was a scapula close by. The season is evoked by the unfurling fern against the based of the oak.

Dark, Unwritten Forest Secrets
Copyright 2019 All Rights Reserved Michael Stephen Wills

Massed White Trillium Blooms

Wonder of the northern spring forest

Click here for my Online Gallery offering from this group.

I came upon this display April 2004, a wonder of the northern spring forest.

Click either photograph for a larger view.

Copyright 2019 All Rights Reserved Michael Stephen Wills