80 FORREST—GENTIANACE 
Swertia (Ophelia) punicea, Hemsley, in Journ. Linn. Soc., 
xxvi. (1890), p. 140; Franchet, in Bull. Soc. Bot., France, 
xlvi. (1899); p. 317; Gilg., in Engl. Jahrb., xxix. (1900), 
P- 539: 
“Valley of the Mekong at an elevation of 6-gooo feet. Flowers 
deep purple. Yunnan, Oct. 1904.” G. Forrest. No. 27. 
Swertia (Ophelia) macrosperma, C. B. Clarke; Franchet, in 
ull. Soc. Bot., France, xlvi. (1899), p. 318; Gilg., in Engl. 
Jahrb., xxix. (1900), p. 539. 
“Dry limestone hillside on ascent of pass between Teng-chuan 
and Lang Kung valleys. Elevation 8-10,000 feet. Flowers 
pale blue. Yunnan, Sept. 1904.” G. Forrest. No. 76. 
Swertia (Ophelia) ee Sonraghes in Bull. Soc. Bot., France, 
vi. (1899), P. 3 
“Valley of the ote above meee Elevation 6-8000 
feet. Flowers pale blue. Yunnan, Oct. 1904.” G. Forrest. No. 162. 
Swertia (Euswertia) mekongensis, Balf. fil. et G. Forrest. 
nov. Plate xix. 
Perennis sicco nigrescente rhizomate lignoso, caulibus turionum — 
terminalium 2-3 dm. alt. glabris crassis quadrangularibus infra 
kataphylla 2-3 gerentibus dein nudis supra foliaceis. Folia 
kataphyllaria amplexicaulia suprema in laminam ellipticam producta; 
caulinia opposita sessiliaovato-cordiformia acuta plurinervia maxima 
5°5-7 cm. longa, 4 cm. lata, integra. Inflorescentise in cymas 
Flores parvi hermaphr oditi tetrameri. Calyx parvus basin corollze 
adhzerens, tubo 1 mm. longo, lobis triangularibus 2 mm. longis. 
Corolla rotata, tubo 4 mm. longo, lobis ellipticis violaceo-striatis 
apice rotundatis minutissime crenulatis 5 mm. longis 4 mm. latis 
quoque macula biloba basali in faucem projecta instructo. Stamina 
corollz lobis breviora et in faucem inserta. Gynzeceum breve 4 
mm. longum; stylo ad basin usque fisso lobis 2 mm. longis. 
“Mekong-Salwen divide behind Tzekou Mission. Tibet, 1904.” 
G. Forrest. No. 230. 
species named S. congestiflora by Franchet in the Paris 
Herbarium seems near this, but I have found no description of it. 
