Pyenostachys. | LABIAT: (Cooke). 291 
1. P. urticifolia (Hook. in Bot. Mag. t. 5365); a much-branched 
perennial herb 5-8 ft. high ; stems and branches obtusely quad- 
-rangular, pubescent; leaves long-petioled, ovate, acute, crenate, 
densely pubescent on both sides, rounded, truncate or shortly cuneate 
at the base; petioles reaching 2 in. long, pubescent; flowers in 
dense spikes growing out to 2-3 in. long, 14 in. in diam. (excl, the 
corollas) ; bracts 2—3 lin, long, narrowly linear, slightly wider at 
the top than the base, pubescent ; calyx reaching } in. long; tube 
1 lin. long in flower, narrowly campanulate, pubescent, reaching in 
fruit 2 lin, long, strongly nerved, curved, with 5 submembranous 
processes which project above the mouth of the calyx alternating 
with its teeth and close over its mouth ; teeth reaching nearly 5 lin. 
long, becoming very rigid and spine-like in fruit, pubescent ; corolla 
bright blue; tube sharply deflexed at about 2} lin. from its base 
and narrowly cylindric (scarcely } lin. in diam.) above the deflexion, 
much dilated to about 1? lin. broad for 2 lin. below it; upper lip 
12 lin. long, cuneate-oblong, with 4 rounded apical lobes ; lower lip 
3-34 lin. long, nearly 2 lin. deep, boat-shaped, with intruded apex, 
pubescent outside; stamens not exserted beyond the lower lip, 
upper pair 2 lin. long, lower 3 lin. long; style longer than the 
stamens, shortly 2-fid. Guerke in Engl. Jahrb, xxii. 146 ; Baker in 
Dyer, Fl. Trop. Afr. v. 386. 
SovutH Arrica: without locality, Mrs. Saunders, 3890 ! 
Katawart Reaion: near Barberton; Louws Spruit, 1200 ft., Bolus, 9745! 
wooded ravines near Barberton, 3000 ft., Galpin, 943! Woodbush mountains, 
Mrs. Barber, 4! 
Also in Tropical Africa. 
2. P. reticulata (Benth. in DC. Prodr. xii. 83) ; a perennial herb, 
2-3 ft. high; stems obtusely quadrangular, more or less densely 
pubescent, erect, simple or branched ; leaves sessile or nearly so, 
oblong or oblong-lanceolate or lanceolate, acute or subobtuse, 
irregularly crenate-serrate, strongly nerved and reticulately veined, 
pubescent above and densely so on the veins beneath, lower leaves 
3-4 in. long, 4-1} in. broad, becoming shorter upwards ; flowers in 
dense cylindric spikes 1-2 in. long, $—} in. in diam. (excl. the 
corollas), forming a lax panicle ; bracts lanceolate, acute, 2} lin. long, 
- pubescent ; calyx-tube in flower shortly pubescent ; teeth reaching 
2 lin. long, linear-subulate, pubescent ; corolla pubescent outside ; 
tube sharply deflexed about the middle, very narrow and straight 
for 2 lin. below the deflexion, then much dilated for 2 lin, above it ; 
upper lip 1} lin. long, 1 lin. broad, quadrate, 4-lobed ; lower lip 
nearly 3 lin, long, 1} lin. deep, boat-shaped ; upper pair of stamens 
21 lin. long ; lower pair 3 lin. long; style longer than the stamens, 
shortly 2-fid. 
Kabanart Reaion: Transvaal ; Woodbush, Rehmann, 6174! 
Eastern Recron: Natal; near Durban, Drege! Krauss, 329! Wood in 
MacOwan & Bolus, Herb. Norm., 1016! Inanda, Wood, 59! and without: precise. 
locality, Gerrard, 101! a 
