568 CVI. acanthace^e. [Hygrophila. 
Possibly an accidental weed, not seen here again. Distrib. India 
and Africa. 
7 . NOMAPHILA, Blutne 
Herb; leaves lanceolate. Racemes axillary, many-flowered. 
Flowers secund, blue. Bracts small or o. Calyx deeply divided 
into 5 lobes. Corolla blue; tube narrow then dilate. Stamens 
4. Capsule slender, dehiscent into 2 recurved valves. Seeds 
numerous ovoid. Species about 12, Africa and Asia. 
(1) N. stricta Nees, DC. Prodr. xi. 84; Clarke, l.c. 647. 
Branched nearly glabrous, 1 to 3 ft. tall. Leaves narrow 
elliptic, attenuate at each end, glabrous above, pubescent on nerves 
or all over beneath, 3 to 4-5 in. long, 1-5 in. wide; petioles 3 in. 
long or less, slender. Racemes or corymbs numerous, 3 in. long. 
Calyx -25 to *35 in. long, lobes linear. Corolla -5 in. long, bright 
blue. Capsule *36 in. long. Hab. Common in muddy river banks, 
Johor, Batu Pahat; Kota Tinggi. Perak, Perak River (Kunstler) ; 
Kurau (Wray); Ipoh (Curtis); Kwala Dipang. Perlis, Kanga 
(Ridley). 
var. minor, N. minor Clarke, l.c. 648, rather smaller in all parts, 
glabrous. Distrib. Perak, Krian (Scortechini). 
var. corymbosa, N. corymbosa Bl. Bijdr. 804. Much reduced 
and viscid, hairy all over. Perlis, Kanga, in a dried-up rice field. 
Distrib. Malay islands. All these varieties and some more appear 
to me merely variations due to the dryness or dampness of 
locality. 
8 . STENOTHYRSUS, C. B. Clarke 
Tall herb, glabrous. Leaves rather stiff lanceolate acuminate. 
Inflorescence a terminal spike of whorls of flowers on a long peduncle 
with 2 ovate leaves about the middle. Sepals linear. Corolla- 
tube cylindric narrow, campanulate above, blue. Stamens 4, 
in pairs. Style thinly hairy, lobe 1 oblong linear, the other sup¬ 
pressed. Capsule narrow ellipsoid, seed-bearing from base. Seeds 8. 
Species 1. 
(1) S. Ridleyi Clarke, l.c. 651. 
Stem rather tall. Leaves glabrous, long narrowed to base, 
4 in. long, 1*5 in. wide; petioles 2 in. long. Peduncle 6 to 7 in. 
long, ovate leaves 1-5 in. long, 75 in. wide. Spikes 6 in. long 
of opposite short cymes of 6 or 7 flowers. Calyx *175 in. long. 
Corolla 1 to 1-5 in. long, bright blue, pubescent. Hab. Local, 
Limestone rocks. Perak, Tambun; Ipoh (Curtis, Ridley). 
9 . HEMIGRAPHIS , Nees 
Herbs or shrublets, usually hairy. Leaves often crenate. 
Spikes terminal or in small axillary heads on axillary peduncles. 
Bracts usually large, lanceolate or ovate. Sepals lanceolate-linear. 
