The Orchids of County Dublin. 197 



Ha)t>enarIaconopsca(Benth.)— Fragrant Orchis.— Widely distri- 

 buted in the county, occurring in seven of the districts, and very abundant 

 in many places on the drift, especially in railway cuttings. It grows most 

 luxuriantly in the cuttings near Killester on the Great Northern Railway, 

 where I have gathered specimens measuring fully i foot 11 inches in 

 height. 



lyowland in the county, reaching only to about 650 feet (in Glena« 

 smole.) 



Habenarla viridis (R.Br.)— Frog Orchis. — Rather common, occur- 

 ring in six of the county districts, and abundant in many stations in the 

 uplands, as on the Brittas Hills, in Upper Glenasmole and round Friars- 

 town and Piperstown. This species seems to be quite indifferent as to 

 soil. It appears on the basalt at Ballynascorney, on the limestone drif 

 at Balbriggan and Glenasmole, in sandy pastures by the shore near 

 Skerries, and in stiff non-calcareous clays on Carrickbrack in the Naul 

 Hills. 



Ranging from sea-level to 1,000 feet on Mount Seskin and Kilakee 

 Mountain, and to 1,050 feet on Knockanavea. 



Mabenarla albida (R.Br.)— Rare, recorded only from two districts 

 of the county. Templeton, in his MS. Flora, enters it as found " in 

 pastures on the sides of Kelly's Glen, Dodder River," the date of the 

 record being certainly not later than 1820. It still maintains itself in 

 this station, where Mr. Greenwood Pim gathered it in 1889, and Dr. 

 M'Weeney so recently as in 1894. 



Habenaria chlorantha (Bab.)— Butterfi<y Orchis.— Rather fre* 

 quent in the three mountain districts of the county, as on the northern 

 slopes of Slieve Thoul, in Upper Glenasmole and at Ticknock. This is, no 

 doubt, the species recorded by Wade in his Catalogue of Dublin Plants 

 (1794) under Habenaria bijolia as found " at Stagstown " (Ticknock) and 

 ** between Lugmore and Kilty-loones " (Kiltalown). 



Ranges to 900 feet on Slieve Thoul. 



To the foregoing notes on the orchids clearly entitled to a 

 place in the present-day flora of the County Dublin, may be 

 added a few words on the following two species, which, 

 though recorded for the county, have not been recently 

 observed. 



NeottlaNldus-avis (Rich.)- Bird's Nest Orchis.— For this there 

 are two old records, both for the same locality. Woodlands, on the Liffey, a 

 most likely station for the plant. Wade, in his Planta Rat lores (1804), gives us 

 the first record in these words : — " In the thickets among the rotten leaves, 

 Luttrellstown' wood, Co. Dublin, flowering so early as April." The 

 flowering season here given would appear to point to Lathraa, which still 



* The old name forWoodlands. 



