442 
were dehiscent ; hence my uncertainty as to whether it belongs to Scepaceae ; and yet 
there is no better station ; for it differs from Betulaceae in its female flowers not being 
amentaceous, and in its 2-leaved calyx ; its compound pistil separates it from Urticaceae 
and its amentaceous unisexual flowers with monadelphous stamens from Ulmaceae. 
23. Mourera. 
For this, the original name of Aublet, both Bongard and Chamisso have preferred the spu- 
rious one, Lacis, of Schreber ; I trust however, that in this, as in other cases, botanists 
will not hesitate to repudiate a term which has no pretensions for preservation, and will 
do justice to the memory of Aublet. The excellent descriptions of Bongard and Chamisso 
have throwTi much light upon the true structure of the genus ; but I cannot concur with 
the former author in referring to one genus all the species assembled under the name of 
Lacis. — In the first place there is the original Mourera, with a rudimentary calyx and 
separate stamens surrounding the ovary on all sides ; to this genus, of which Marathrum 
appears to be a species, and to which are to be referred Lacis aspera, membranacea, &c. 
the name Mourera may be preserved. — Secondly, there is Lacis monadelpha Bong, 
w’hich has no rudimentary calyx, and monadelphous stamens surrounding the ovary on 
all sides ; for the sake of avoiding a new name that of Lacis may be continued to this 
type. — Thirdly, there are various species with the rudiments of a calyx and (generally 
two) unilateral stamens ; these constitute the genus Podostemon, which I see no advan- 
tage in suppressing. 
24. Aquilaria. 
Perianthium turbinatum, coriaceum, tubo intus squamis descendentibus hirsutis tecto. 
Stamina fertilia 10; filamenta breviuscula. Ovarium sessile, obovatum, obtusum. 
Stigma sessile, convexum. Capsula sessilis, lignosa. — Ophispermum Lour, forte hue 
pertinet, teste Brown, at stylus dicitur elongatus et bifidus, verosimiliter per incuriam : 
hujus etiam perianthium dicitur 6-partitum, at caeterae descriptionis partes hanc erro- 
rem typographicam esse probant. Arnott in litt. 
25. Gyrinops. 
Perianthium longe tubulosum, tenue coloratum ; tubo intus glabro. Antherae 5, perianthii 
' lobis oppositae, sessiles. Ovarium longe stipitatum oblongum, apice in stylum conico- 
filiformem attenuatum. Stigma compresso -globosum. Capsula longe stipitata, coriacea. 
— Tota planta colore aurantiaco suflfusa. Cortex valde tenax, omnino ut in Thymeleis. 
Folia elliptico-oblonga, subito et obtuse acuminata. Perianthium (in sicco) aurantiacum 
novem lineas longum, vix semilineam latum. Arnott in litt. 
26. Evonymodaphne. N. ah Esenheck. 
Hermaphrodita. Stamina perfecta 3 tertii ordinis, in columnam angulatam contigua ; 6 
exteriora laminiformia, alterna sessilia unguiculataque. Antherae apice poro gemino 
horizontali dehiscentes, valvula introrsum adscendente erecta. Fructus ignotus. — Laurus 
armeniacaPoj?pig'.. Ad Tochache in Peruvia. N.ah Esenbeck in litt. Dec. 1835. 
27. Pleurothyrium. N. ah E. 
Hermaphroditum. Perianthium 6-fidum tubo obconico-trigono, laciniis patentibus oblongis 
subaequalibus crassiusculis deciduis. Glandulae 6, triangulares ; introrsum carinatae cum 
laciniis perianthii altemantes, persistentes. Stamina 9, subconformia ; antherae sub- 
cubicae, quadrilocellatae locellis omnium lateralibus, parallelis, ovatis ; altero, retro altero 
introrsum spectante ; filamentis brevibus. Staminodia parva dentiformia, basi a tergo 
biglandulosa. Bacca (juvenilis) tubo perianthii suburceolato repando immersa. Inflores- 
centia : thyrsi axillares. Folia costata. Pleuroth. Chrysophyllum et hifidum. (Ocotea) 
Popp. Peruvia. 
28. Blepharolepis. N. ah E. 
Hermaphrodita. Calycis loco bracteolae 2. Petala 4, membranacea, tenuissima, apice 
ciliato-lacera. Stamina 4, libera, petalis altema. Antherae bilocellatae. Stylus bipar- 
titus. Utriculus monospermus, compressus, non dehiscens. — Flores axillares conferti 
ramos undique tegentes et amentum longum fingentes. Folia parva. Tota planta amen- 
tum ramosum exhibit. "^parvus. Bl. Zeyheriana C. B. Sp. An inter Illecebreas ? 
N. ab Esenbeck in litteris. 
29. Centropodium. 
Nomen compositum a Ksvrkb) pungo et novg, tto^oq pes ; quia fructus tribuliformes obam- 
bulantium pedes pungunt. Genus est raonoicum, ex ordine Polygoncarum. — Rumex 
spinosus. Thunb. BurcheH’s Travels, 1. 340. 
