520 Mr. J. E. B1cukNo's Observations 
outer ones largest, not longer than the flowers, and opening so 
as to let them stand all on the same plane. Calyz-leaflets lan- 
ceolate, equal, blush-coloured at the tips. Style very short. 
Capsule elliptical, mucronate, somewhat obtuse, three-sided, 
scarcely exceeding the calyx. Coruncula elongated at each end 
of the seed. 
This is not so rare a plant with us as the J. biglumis, being found 
in the mountainous districts of Wales and of the North of En- 
gland, as well as in Scotland. I have met with it on Helvellyn, 
on Fairfield, and most of the other mountains about Ambleside, 
and at the edge of Scales Tarn in Saddleback. Dillenius mistook 
it for a variety of Scirpus cæspitosus. ‘The leaves instead of being 
flat, as described in the specific character by every botanical au- 
thor but Haller, Wablenburg, and Brown, are constructed with 
cells in a similar manner to those of J. uliginosus; and the articu- 
lations are much more susceptible to the touch on drawing a leaf 
between the thumb and finger—* Semper tam angusta et tereti- 
uscula reperi, ut jure meritoque subulata dici possunt.” Flor. Lap. 
Wahlen. 84. 
16. Juncus BIGLUMIS. 
Juncus foliis subulatis, floribus binis terminalibus altero pedi- 
cellato, capsulis apice retusis calyce longioribus. Wahlen. Flor. 
Lap. 84. 
J. culmo basi folioso, foliis linearibus planis, capitulo subbifloro 
folio suffulto. Rost. Monograph. 53. 
J. foliis subulatis, gluma biflora terminali. Sp. PI. 467, Flor. Dan. 
120. Huds. 649. Lightf. 1100. 
J. floribus terminalibus subgeminis, bractea altera floribus lon- 
giore acuminata. Vahl. Act. Soc. Hist. Nat. Haf. ii. 1. 38. 
J. foliis planis, capitulo bifloro terminali secundo basi foliato. 
Flor. Brit. 382. Eng. Bot. xiii. 898. : 
Angl, Two-rrowrnED Rusu. 'lwo-glumed Rush. 
| ; Habitat 
