Welwitschia.] cxxviii. gnetace^ (Pearson). 333 



extending round half the raised rim of the hypocotyl, oblong, entire, 

 usually in old plants torn into few or many stra])-like segments 

 from apex to base, thick, leathery with the main nerves parallel and 

 distinct, growing at the base as long as the plant lives, dying at the 

 apex, up to 4 yards long. Spikes arranged in compound dichasial 

 cymes (rarely solitary) arising annually from pits in the floriferous 

 cushions situated immediately above, not seldom immediately 

 beneath each leaf. Male spike bearing 40-70 axillary flowers in 4 

 rows ; bracts connate, lowest pair or 2 pairs barren ; florets con- 

 cealed by the bracts until the exsertion of the anthers. Female 

 spike bearing 40-60 florets in 4 rows ; lowest 6-10 pairs of bracts 

 increasing in size from below upwards, barren, the lowest 2 or 3 

 pairs connate ; except the micropylar tube, the seed completely 

 concealed by the bract at maturity.- Tii//i6oa, Wclw. ex Hook, 

 in Gard. Chron. 1861, 75. 



Species 1, in the South West African Coast belt. 



1. W. mirabilis, Hook. f. m Trans. Linn. Soc. xxiv. 1, tt. 1-14. 

 Characters as for the genus. — Bot. Mag. tt. 5368-9 ; Monteiro, Angola 

 and Riv. Congo, ii. 228-231, t. 15 ; Naudin in Gard. Chron. 1882, 

 xvii. 14, fig. 3 ; Eichl. in Engl. & Prantl, Pflanzenfam. ii. i. 123. 

 figs. 79-82; Giirich in Mitteil. Geogr. GeseUsch., Hamburg, 

 1891-2, 166 ; Baum, Kunene-Samb. Exped. 450, frontispiece and 

 figs. 2-3 ; Kew Bulletin, 1907, 360, 412, t. 2, figs. 2-3 ; Pearson in 

 Nature, 1907, Ixxv. 536, figs. 1-3, in Geogr. Journ. 1910, xxxv. 494, 

 with figs, and in Gard. Chron. 1910, xlvii. 49, suppl. illustration, 

 Jan. 22 ; Henriques in Gard. Chron. 1910, xlvii. 210, fig. 9n ; 

 Marloth, The Flora of South Africa, PI. 21 ; Church in Phil. Traii.<. 

 (B), ccv. (1914), 115 (with figures). Tumhoa Bainesii, Hook. f. in 

 Gard. Chron. 1861, 1008; Engl, in Engl. & Prantl, Pflanzenfam. 

 Nachtr. i. zu ii.-iv. 27, and in Pflanzenwelt Afr. ii. 90-93, fig. 85. 



Lower Guinea. Angola : Mossamedes District ; Cabio Negro, ]\ clu-iUch, 

 and without precise locality, Mrs. Monteiro. Damaraland : W( Iwitsch, (rolptu 

 de Pearson, 7470 ! 747(3 f and without precise locality, Baines ! Swakop 

 River, near Walfish Bay, Cleverly in MacOwan Herb. Austr.-AJr. 17261 Hai- 

 kanichab, Galpin db Pearson, 7440 ! 7441 ! 



Mr8. Monteiro's sixjcimcns aie labelled " Loanda." The livcr San Kirolau 

 which Monteiro regarded as the northern limit of Welwitschia is about 3CK) uiilet 

 south of Loanda. The species certainly does not occur in the Loanda district. 



Order CXXIX. PINACEiE. 



(By 0. Stapf.) 



Dioecious or monoecious. Male cones mostly catkin-like, terminal 

 or axillary, simple and usually solitary, rarely spicate or lanceolate, 

 bracteate or ebracteate at the base ; scales bearing basi-dorsa'" 



