alpestris Boiss, with denticulate to serrate leaves, mucronate teeth, below glabrescent to pubescent, petiole up to 0.9 cm, with sinuate secondary ribs and abundant fasciculate, multiradiate and stellate trichomes; later named by COUTINHO (1888) as: Q.
xlousae Leaf morphology Progressively Progressively obovate obovate towards towards the apex, the apex, convex flat Leaf margin Lobulate Lobulate Marginal spines Absent Absent or present Nerves Protruding, Protruding, rectilinear > 10 rectilinear < 9 Pubescence Abaxial surface Abaxial surface glabrescent, glabrous to Adaxial surface glabrescent, Adaxial glabrous surface glabrous Petiole length mm (8-)10-15(-18) (4-)6-5(-8) reddish Types of trichomes above Simple-uniseriate Absent Scarce Bulbous Absent Present Solitary Present Scarce Fasciculate Absent Absent Multiradiate Present Scarce Stellate Present Scarce Fused-stellate Absent Absent Characteristics Q.
The types of trichomes observed were glandular (simple and bulbous) and eglandular (solitary, stellate, fused stellate, multiradiate, fasciculate and fasciculate stipitate).
10), and multiradiate trichomes, with 8 rays (87-106 [micro]m).
11) are simple (11-87 [micro]m), multiradiate with 9 short arms (50-62 [micro]m), stellate with 5-6 arms measuring 97-335 [micro]m and solitary (71 [micro]m), all covered by wax film, except the stellate trichomes, which also have wax granules.
On the adaxial surface there are simple (94-104 [micro]m) and multiradiate trichomes with 5-11 rays (69-164 [micro]m).
Trichomes on the adaxial surface are simple (74-141 [micro]m) and multiradiate with 6-10 rays (103184 [micro]m), both types covered with wax films.
Simple trichomes (83-139 [micro]m), multiradiate trichomes (9 rays, 77 [micro]m long) and fasciculate stipitate trichomes (5-8 rays, 80-321 [micro]m long) are present on the abaxial surface, all of them covered by wax film.
The trichome types observed were fasciculate stipitate on the abaxial surface and multiradiate with 6-8 rays (74-100 [micro]m) on the adaxial surface.
17) and stellate (with 5 arms, 121 [micro]m long) types on the abaxial surface, and of multiradiate type (with 6-8 arms, 78-89 [micro]m long) on the adaxial surface.
On the adaxial surface there are multiradiate trichomes (with 6-13 rays, 42-243 [micro]m long) and simple trichomes (64-171 [micro]m), both covered with wax film.
The trichomes observed on the abaxial surface are multiradiate with 12-20 rays (98-180 [micro]m) covered with wax granules, and simple trichomes (150 [micro]m) covered with wax film (Fig.