CAREX DURI^I, STEUDEL 



POR 



EDWIN J. JOHNSTON 



This rare plant, of which the accompanying photo- 

 type (Plate 6) is a representation, was found near Barcel- 

 los by Snr. António Ricardo da Cunha, keeper of the her- 

 barium of the Polytechnic School in Lisbon. It has also 

 appeared on the banks of the river Ferreira, about 7 miles 

 east of Oporto..The group of plants on the left and the 

 flowering stem in the centre are on a scale of very nearly 

 one half the natural size; the numbered figures on the 

 right are of course magnified. 



Fig. 1. Section of leaf, the concavity being on the 

 upper side. In some plants recently examined, the leaves 

 were found to be channelled at the base, but with the 

 edges roUed inwards near the middle and extremities. 



2. Utriculus with glume, under side. The glume is 

 ovate-acuminate, but the edges have partly rolled inwards 

 upon its removal from the spikelet. 



3. Utriculus, upper side. 



4. Section of the same, showing the achenium in the 

 centre. 



5. Part of male spikelet. 



6. Male flower, under side. The edges of the glume 

 have rolled inwards, as in Fig. 2. 



These figures were drawn from fresh specimens with 

 the camera lúcida, and they correctly represent what was 

 under the microscope at the time, but the rapidity with 



Ann. de Sc. Nat., v, I., Junho 1894.— Porto. 



